Search UML2 Class

Hi guys,

I am trying to find by script an UML2 Class by using: 

db.Find(Constants.SEARCH_OBJDEF, null, Constants.AT_NAME, nLocale, OpMalGrN, Constants.SEARCH_CMP_WILDCARDS)

But I am not getting any response, even if there are 2 uml2 classes with the exact name.

What am I doing wrong?

Thanks,

Ignacio