diff --git a/docs/cn/editor/search.md b/docs/cn/editor/search.md
index e7f724b..4bb08e2 100644
--- a/docs/cn/editor/search.md
+++ b/docs/cn/editor/search.md
@@ -8,7 +8,7 @@
 
 您也可以在一次查询中使用 `空格` 作为分隔符搜索多个关键词，例如 `Markdown plaintext`，它可以搜索同时包含 `Markdown` 和 `plaintext` 的文件名或文件内容。
 
-> 全文搜索会自动搜索子目录，当您有大量的文件时，会花费一些时间。
+> 全文搜索会自动搜索子目录，当您有大量的文件时，会花费一些时间。基于同样的原因，外部目录不能被全局搜索。
 
 ## 在文档中查找
 
diff --git a/docs/editor/search.md b/docs/editor/search.md
index b471812..7b6a957 100644
--- a/docs/editor/search.md
+++ b/docs/editor/search.md
@@ -8,7 +8,7 @@ Search results are beautifully highlighted.
 
 You can also search multiple terms in one query using `space` as delimiters, such as `Markdown plaintext`, it searches for file name or file content that contains both `Markdown` and `plaintext`.
 
-> Full text search automatically searches sub-folders, it takes some time when you have huge amount of files.
+> Full text search automatically searches sub-folders, it takes some time when you have huge amount of files. For the same reason, external folders cannot be searched globally.
 
 ## Find in Document