Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarian, bulgariaiae, bulgarieiae
bulgar » bulgaria, bulgarie
bulgarieian » bulgariaieian, bulgarieieian, bulgarian, bulgarien, bulgarean
bulgare » bulgariae, bulgariee, bulgarie, vulgare, bulgarien
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: (bulgariae OR ((((bulgar OR bulger) OR bulgarieian) OR vulgar) OR bulgare)).
• Adding a wildcard symbol may retrieve word variants: (bulgariae or ((((bulgar or bulger) or bulgarieian) or vulgar) or bulgare))*.