Perhaps you should try some spelling variations:
vulgaricae » bulgaricae, bulgarica, bulgariae
bulgeriae » bulgariae, bulgaricae, bulgaria, bulweriae, bulgariane
bulgar » vulgar, bulger, bulgaria
bulgare » vulgare, bulgere, bulgariae, bulgarie, bulgarien
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: ((vulgaricae OR bulgeriae) OR ((bulgar OR bulgeria) OR bulgare)).
• Adding a wildcard symbol may retrieve word variants: ((vulgaricae or bulgeriae) or ((bulgar or bulgeria) or bulgare))*.