Perhaps you should try some spelling variations:
bulgarisch » bulgarische, bulgarischen, bulgareisch, vulgarisch, bulgerisch
bulgareian » bulgarean, bulgaria, bulgarien, bulgareeian, vulgareian, bulgereian
bulgarian » bulgaria, hungarian, bulgareian, vulgarian, bulgerian
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: ((bulgarisch OR (bulgareian OR bulgarian)) OR (bulgar OR bulges)).
• Adding a wildcard symbol may retrieve word variants: ((bulgarisch or (bulgareian or bulgarian)) or (bulgar or bulges))*.