1c6077c0_ual_Site_via_Wordpress_Plugins__qTranslate
[0] Search [Multilingual Press] Each translation is a separate site, therefore it has its own search. [Multisite Language Switcher] - [qTranslate] 
This would be tricky, as we don't want the languages to mix in search results.
How to Build a Multilingual Site via Wordpress Plugins
qTranslate