Changing the indexing language defined in Confluence may improve the accuracy of Confluence search results, if the majority of the content of your site is in some language other than English. Confluence supports content indexing in English (default), German, Russian, Chinese, CJK, Custom Japanese, French, Portuguese, Czech and Greek.

Currently, you can only can change indexing language and reindex all documents if you are a sysadmin. Otherwise, you have to contact Atlassian Support.

To configure the indexing language:

  1. Select (Settings) in the Confluence navigation

  2. Choose General Configuration on the left
  3. Click Edit
  4. Select the Indexing Language from the dropdown list in the Formatting and International Settings section
  5. Hit Save