Perhaps you should try some spelling variations:
bulgaricae » bulgarica, bulgarische, bulgaria, vulgaricae, bulgericae, bulgariaicae
bulgeriae » bulgariae, bulgaria, bulgarian, bulweriae, bulgariane
bulgar » vulgar, bulger, bulgaria
bulgare » vulgare, bulgere, bulgariae, bulgarie, bulgarien
vulgaria » bulgaria, vulgaris, vulgari
bulgeria » bulgaria, bulweria, bulgarian

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