Perhaps you should try some spelling variations:
bulgarian » bulgaria, bulgareian, vulgarian, bulgariaian
bulgariia » bulgaria, bulgaricae, bulgarien, bulgareiia, vulgariia, bulgariaiia
bulgarica » bulgaria, bulgarisch, bulgarien, bulgareica, vulgarica, bulgariaica
bulgar » bulgare, vulgar, bulgaria
bulger » bulge, 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: ((bulgarian OR ((bulgariia OR hungarian) OR bulgarica)) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((bulgarian or ((bulgariia or hungarian) or bulgarica)) or (bulgar or bulger))*.