Google changing results based on language pref?

[guillebe]

I get different ordering of results just by selecting a different "interface language":

Seems like it is prioritizing results in the same language selected for the interface.

Is this a known behavior?

[doc_z]

Yes, this behaviour is known: recent thread [webmasterworld.com], older thread [webmasterworld.com], old thread [webmasterworld.com]