MicrostockGroup

Keywords are not translated in your portfolio, only in search results.
Try this :  put the site on the chosen language and do a search with translated keywords.  Be sure to use words that cannot be translated otherwise, because the automatic translations REALLY make a mess of it.  It's easiest if you put the search on "newest first" and then type keywords for one of your newest images.  If you find your image, you'll see the keywords are translated. 
Be sure to sit down when you do this, cause the translated results are truly hilarious!
(at least they are in Dutch, may-be not in other languages).

Translation is the most valid reason I see in IS's disambiguation years ago.  It can make all the difference in a translation.  It's a pity it deviated from this, but it must be nevertheless a strength in their international sites.