[Bug]Chess-Opening Search-Engine

There is a problem with the chess-openings-search-engine.

I´m playing a Grünfeld-defense Theme-Tournament so I tried to find out what it is...but when I searched for "Grünfeld" nothing was founded...because the "ü" I searched for "Gruenfeld" too...no result...I searched for "Grünfeld-Defense" like the tournament was told...really NO result...

So after i was angry i tried again with the basic of the basic..."gr" and of course i found 166 results!!And there are many variations...too many in fact...

there is 

"Grünfeld" and "Gruenfeld"

and "Verteidigung" and "Defense"

and sometimes a mixture of english and german

of course its normal to mix it a bit but maybe it is possible to let the search-engine find every opening of Grünfeld/Gruenfeld if the is "Grünfeld" or "Gruenfeld" is searched

and maybe it is possible to name it all uniform

like all "-Grünfeld-"  or/and all "-Gruenfeld-"

and all "-Verteidigung" or/and all "-Defense"

P.S.:Grünfeld is an personal name

So please repair