Perhaps you should try some spelling variations:
bulgarie » bulgarien, bulgarian, vulgaris, vulgarie
vulgarische » bulgarische, bulgarischen, bulgarischer
vulgarian » bulgarian, bulgarians, vulgaridad
bulgaria » vulgaria
bulgar » vulgar
bulgare » vulgare, bulgarien, vulgares
bulger » bulges

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((bulgarie OR (vulgarische OR (vulgarian OR bulgaria))) OR (((bulgar OR bulger) OR bulgare) OR bulge)).
• Adding a wildcard symbol may retrieve word variants: ((bulgarie or (vulgarische or (vulgarian or bulgaria))) or (((bulgar or bulger) or bulgare) or bulge))*.