Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarie, bulgareiae, bulgeriae, bulgarieiae
vulgareiae » vulgarise
bulgaria » bulgareia, bulgeria, bulgarieia
bulgar » bulgare, bulger, bulgarie
bulgariee » bulgareiee, bulgeriee, bulgarieiee, bulgarien, bulgarie, bulgariens

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