Perhaps you should try some spelling variations:
bulgaricae » bulgarica, bulgarische, bulgarian, vulgaricae, bulgericae
bulgarie » bulgarien, bulgarian, vulgaris, vulgarie, bulgerie
bulgar » vulgar, bulger
bulgaria » vulgaria, bulgeria
bulgare » vulgare, bulgere, bulgarien, vulgares
bulgeria » bulweria, bulgarian, bulgarica

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: ((bulgaricae OR bulgarie) OR ((bulgar OR (bulgaria OR bulgeria)) OR bulgare)).
• Adding a wildcard symbol may retrieve word variants: ((bulgaricae or bulgarie) or ((bulgar or (bulgaria or bulgeria)) or bulgare))*.