Perhaps you should try some spelling variations:
bulgareiae » bulgariae, bulgarian, bulgaricae, bulgareeiae, vulgareiae
bulgarie » bulgarian, vulgaris, vulgare, bulgareie, vulgarie
bulgarien » bulgariann, vulgarisn, vulgaren, bulgarian, bulgareien, vulgarien
bulgarica » bulgarisch, bulgarian, bulgareica, vulgarica
bulgaria » bulgareia, vulgaria
bulgar » bulgare, vulgar
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 ((bulgarie OR bulgaria) OR (bulgarien OR bulgarica))) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((bulgareiae or ((bulgarie or bulgaria) or (bulgarien or bulgarica))) or (bulgar or bulger))*.