diff --git a/modules/docs/src/Volo.Docs.Admin.Application/Volo/Docs/Admin/Documents/DocumentAdminAppService.cs b/modules/docs/src/Volo.Docs.Admin.Application/Volo/Docs/Admin/Documents/DocumentAdminAppService.cs
index cb6443d268..c6758127cf 100644
--- a/modules/docs/src/Volo.Docs.Admin.Application/Volo/Docs/Admin/Documents/DocumentAdminAppService.cs
+++ b/modules/docs/src/Volo.Docs.Admin.Application/Volo/Docs/Admin/Documents/DocumentAdminAppService.cs
@@ -3,7 +3,9 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Authorization;
+using Microsoft.Extensions.Logging;
 using Volo.Abp;
+using Volo.Abp.Uow;
 using Volo.Abp.Application.Dtos;
 using Volo.Abp.Application.Services;
 using Volo.Abp.Caching;
@@ -100,14 +102,21 @@ namespace Volo.Docs.Admin.Documents
             foreach (var leaf in leafs)
             {
                 if (leaf.Path.StartsWith("http://", StringComparison.OrdinalIgnoreCase) ||
-                    leaf.Path.StartsWith("https://", StringComparison.OrdinalIgnoreCase))
+                    leaf.Path.StartsWith("https://", StringComparison.OrdinalIgnoreCase) ||
+                    (leaf.Path.StartsWith("{{") && leaf.Path.EndsWith("}}")))
                 {
                     continue;
                 }
 
-                var sourceDocument =
-                    await source.GetDocumentAsync(project, leaf.Path, input.LanguageCode, input.Version);
-                documents.Add(sourceDocument);
+                try
+                {
+                    var sourceDocument = await source.GetDocumentAsync(project, leaf.Path, input.LanguageCode, input.Version);
+                    documents.Add(sourceDocument);
+                }
+                catch (Exception e)
+                {
+                    Logger.LogException(e);
+                }
             }
 
             foreach (var document in documents)
diff --git a/modules/docs/src/Volo.Docs.Application/Volo/Docs/Documents/DocumentAppService.cs b/modules/docs/src/Volo.Docs.Application/Volo/Docs/Documents/DocumentAppService.cs
index 02bb535f50..6cacf9d3e3 100644
--- a/modules/docs/src/Volo.Docs.Application/Volo/Docs/Documents/DocumentAppService.cs
+++ b/modules/docs/src/Volo.Docs.Application/Volo/Docs/Documents/DocumentAppService.cs
@@ -176,7 +176,7 @@ namespace Volo.Docs.Documents
                 Version = esDoc.Version,
                 LanguageCode = esDoc.LanguageCode,
                 Highlight = esDoc.Highlight
-            }).ToList();
+            }).Where(x => x.FileName != project.NavigationDocumentName && x.FileName != project.ParametersDocumentName).ToList();
         }
 
         public async Task<bool> FullSearchEnabledAsync()
@@ -338,4 +338,4 @@ namespace Volo.Docs.Documents
             return TimeSpan.Parse(value);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/modules/docs/src/Volo.Docs.Domain/Volo/Docs/Documents/FullSearch/Elastic/ElasticDocumentFullSearch.cs b/modules/docs/src/Volo.Docs.Domain/Volo/Docs/Documents/FullSearch/Elastic/ElasticDocumentFullSearch.cs
index cbe5905d3a..05a3f1c4c8 100644
--- a/modules/docs/src/Volo.Docs.Domain/Volo/Docs/Documents/FullSearch/Elastic/ElasticDocumentFullSearch.cs
+++ b/modules/docs/src/Volo.Docs.Domain/Volo/Docs/Documents/FullSearch/Elastic/ElasticDocumentFullSearch.cs
@@ -72,7 +72,7 @@ namespace Volo.Docs.Documents.FullSearch.Elastic
                 Name = document.Name,
                 FileName = document.FileName,
                 Content = document.Content,
-                LanguageCode = document.LanguageCode,
+                LanguageCode = ConvertLanguageCode(document.LanguageCode),
                 Version = document.Version
             };
 
@@ -178,7 +178,7 @@ namespace Volo.Docs.Documents.FullSearch.Elastic
                                 new TermQuery
                                 {
                                     Field = "languageCode",
-                                    Value = languageCode
+                                    Value = ConvertLanguageCode(languageCode)
                                 }
                             }
                         }
@@ -232,5 +232,10 @@ namespace Volo.Docs.Documents.FullSearch.Elastic
                 throw new BusinessException(DocsDomainErrorCodes.ElasticSearchNotEnabled);
             }
         }
+
+        protected string ConvertLanguageCode(string languageCode)
+        {
+            return languageCode.Replace("-", "").ToLower();
+        }
     }
 }
diff --git a/modules/docs/src/Volo.Docs.Web/Pages/Documents/Search.cshtml.cs b/modules/docs/src/Volo.Docs.Web/Pages/Documents/Search.cshtml.cs
index 702141bc1e..1e4e797e73 100644
--- a/modules/docs/src/Volo.Docs.Web/Pages/Documents/Search.cshtml.cs
+++ b/modules/docs/src/Volo.Docs.Web/Pages/Documents/Search.cshtml.cs
@@ -1,7 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Encodings.Web;
 using System.Threading.Tasks;
+using System.Web;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.RazorPages;
 using Volo.Docs.Documents;
@@ -29,12 +31,15 @@ namespace Volo.Docs.Pages.Documents
 
         private readonly IProjectAppService _projectAppService;
         private readonly IDocumentAppService _documentAppService;
+        private readonly HtmlEncoder _encoder;
 
-        public SearchModel(IProjectAppService projectAppService, 
-            IDocumentAppService documentAppService)
+        public SearchModel(IProjectAppService projectAppService,
+            IDocumentAppService documentAppService,
+            HtmlEncoder encoder)
         {
             _projectAppService = projectAppService;
             _documentAppService = documentAppService;
+            _encoder = encoder;
         }
 
         public List<DocumentSearchOutput> SearchOutputs { get; set; } = new List<DocumentSearchOutput>();
@@ -45,7 +50,7 @@ namespace Volo.Docs.Pages.Documents
             {
                 return RedirectToPage("Index");
             }
-            
+
             KeyWord = keyword;
 
             Project = await _projectAppService.GetAsync(ProjectName);
@@ -67,7 +72,19 @@ namespace Volo.Docs.Pages.Documents
                 Version = Version
             });
 
+            var highlightTag1 = Guid.NewGuid().ToString();
+            var highlightTag2 = Guid.NewGuid().ToString();
+            foreach (var searchOutput in SearchOutputs)
+            {
+                for (var i = 0; i < searchOutput.Highlight.Count; i++)
+                {
+                    searchOutput.Highlight[i] = _encoder
+                        .Encode(searchOutput.Highlight[i].Replace("<highlight>", highlightTag1).Replace("</highlight>", highlightTag2))
+                        .Replace(highlightTag1, "<highlight>").Replace(highlightTag2, "</highlight>");
+                }
+            }
+
             return Page();
         }
     }
-}
\ No newline at end of file
+}