Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarie, vulgariae, bulgeriae, bulgarieiae
bulgeriae » bulgaricae, bulgarian, bulgarie
bulgar » vulgar, bulger, bulgarie
bulgaria » vulgaria, bulgeria, bulgarieia
bulgare » vulgare, bulgere, bulgariee, bulgarie, bulgarien
bulgere » bulger, bilgere, burgere

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 bulgeriae) OR ((bulgar OR bulgaria) OR (bulgare OR bulgere))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgariae or bulgeriae) or ((bulgar or bulgaria) or (bulgare OR bulgere)))".
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or bulgeriae) or ((bulgar or bulgaria) or (bulgare OR bulgere)))*.