Perhaps you should try some spelling variations:
bulgariae » bulgarie, bulgarians, bulgarien, vulgariae, bulgeriae, bulgarieiae
bulgaricae » bulgarische, bulgarie, bulgarischen, bulgariene, bulgariee, vulgaricae, bulgericae, bulgarieicae
bulgarian » hungarian, vulgarian, bulgerian, bulgarieian
bulgarica » bulgarisch, bulgarien, bulgarie, vulgarica, bulgerica, bulgarieica
bulgar » vulgar, bulger, bulgarie
bulgaria » vulgaria, bulgeria, bulgarieia
bulgare » vulgare, bulgere, bulgariee, bulgarie, bulgarien

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 (bulgaricae OR (bulgarian OR bulgarica))) OR (((bulgar OR bulgaria) OR bulgare) OR bulge)).
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or (bulgaricae or (bulgarian or bulgarica))) or (((bulgar or bulgaria) or bulgare) or bulge))*.