On this tab, you can choose which culture versions of documents should be indexed. It is necessary to have at least one culture selected. You can choose more than one culture.

 

Please note: You need to rebuild the index after you make any changes on this tab for the changes to take effect.
 
More resources can be found at Developer's Guide -> Modules -> Smart search -> Overview.
 

Page url: http://devnet.kentico.com/docs/5_5r2/contexthelp/index.html?searchindex_cultures.htm