Perhaps you should try some spelling variations:
bulgarian » hungarian, bulgareian, vulgarian, bulgerian
bulgarie » bulgarien, vulgaris, vulgare, bulgareie, vulgarie, bulgerie
vulgarian » bulgarians, vulgaridad, hungarian
bulgarisch » bulgarische, bulgarischen, bulgareisch, vulgarisch, bulgerisch
bulgaria » bulgareia, vulgaria, bulgeria
bulgar » bulgare, vulgar, bulger
bulges » bulge

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: ((bulgarian OR (bulgarie OR (vulgarian OR (bulgarisch OR bulgaria)))) OR (bulgar OR bulges)).
• Adding a wildcard symbol may retrieve word variants: ((bulgarian or (bulgarie or (vulgarian or (bulgarisch or bulgaria)))) or (bulgar or bulges))*.