Perhaps you should try some spelling variations:
bulgariae » bulgarian, bulgarie, bulgarians, vulgariae, bulgeriae, bulgarieiae
bulgaricae » bulgarica, bulgarische, bulgarian, vulgaricae, bulgericae, bulgarieicae
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 bulgaricae) OR ((bulgar OR bulgaria) OR (bulgare OR bulgere))).
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or bulgaricae) or ((bulgar or bulgaria) or (bulgare or bulgere)))*.