Perhaps you should try some spelling variations:
bulgareiae » bulgariae, bulgaria, bulgarie, bulgareeiae, vulgareiae, bulgariaeiae
bulgarica » bulgaria, bulgarisch, bulgarien, bulgareica, vulgarica, bulgariaica
bulgarian » bulgaria, hungarian, bulgareian, vulgarian, bulgariaian
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: (((bulgareiae OR bulgareiae) OR (bulgarica OR bulgarian)) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: (((bulgareiae or bulgareiae) or (bulgarica or bulgarian)) or (bulgar or bulger))*.