Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarie, bulgareiae, vulgariae, bulgeriae
bulgareiae » bulgarian, bulgarie, bulgaricae, bulgareeiae, vulgareiae, bulgereiae
bulgericae » bulgaricae, bulgarica
bulgaria » bulgareia, vulgaria, bulgeria
bulgar » bulgare, vulgar, bulger

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: (((bulgariae OR bulgareiae) OR (bulgericae OR bulgaria)) OR (bulgar OR bulge)).
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or bulgareiae) or (bulgericae or bulgaria)) or (bulgar or bulge))*.