Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarie, bulgareiae, vulgariae, bulgarieiae
bulgareiae » bulgarian, bulgarie, bulgaricae, bulgareeiae, vulgareiae, bulgarieeiae
vulgarica » bulgarica, bulgaricae, vulgaris
vulgaridad » vulgarized
bulgar » bulgare, vulgar, bulgarie
bulgaria » bulgareia, vulgaria, bulgarieia
bulger » bulge, bulges

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 bulgareiae) OR (vulgarica OR vulgaridad)) OR ((bulgar OR bulgaria) OR bulger))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae or bulgareiae) or (vulgarica OR vulgaridad)) or ((bulgar or bulgaria) or bulger))*".