Perhaps you should try some spelling variations:
bulgareiae » bulgariae, bulgarian, bulgarie, bulgareeiae, vulgareiae, bulgereiae
bulgareien » bulgarien, bulgarian, bulgarie, bulgareeien, vulgareien, bulgereien
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: ((bulgareiae OR (bulgaria OR bulgareien)) OR (bulgar OR bulges)).
• Adding a wildcard symbol may retrieve word variants: ((bulgareiae or (bulgaria or bulgareien)) or (bulgar or bulges))*.