Starting with version 5.1, you can use Translation for Confluence's language attributes to search by language within your Confluence instance.
Look for translated content in Confluence’s advanced search
Click in the standard Confluence search.
Select "Advanced Search" (bottom left).
Select "Add a filter" (at the very bottom)
Start typing "translation".
Choose one of the three options (details see below):
Choose one or various languages in the drop-down.
Confluence will now only show results matching this specific language filter.
Tip: You may want to copy the resulting URL with this specific CQL query and share it with co-workers who are less familiar with "Advanced Search" options.
Table of language attributes and CQL fields
Language macro OR page title
bvLanguage = “de_DE”
Filter for German content (page containing the German language macro) OR German page titles.
bvContentLanguage = “de_DE”
Filter for German content (page containing the German language macro).
bvTitleLanguage = “de_DE”
Filter for German page titles.
Using these filters works especially well for
pre-defined reports like the Page Property Report
apps like our Advanced Search for Confluence that let you pre-define filters for users.