Perhaps you should try some spelling variations:
vulgaricae » bulgaricae, bulgarica, bulgariae
bulgeriae » bulgariae, bulgaricae, bulgarian
bulgar » bulgare, vulgar, bulger
bulgaria » bulgareia, vulgaria, bulgeria
bulgarie » bulgareie, vulgarie, bulgerie, bulgarien, bulgarian, vulgaris

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 bulgaria) OR bulgarie)).
• Adding a wildcard symbol may retrieve word variants: ((vulgaricae or bulgeriae) or ((bulgar or bulgaria) or bulgarie))*.