Perhaps you should try some spelling variations:
bulgariae » bulgarian, bulgarie, bulgarians, vulgariae, bulgarieiae
bulgaricae » bulgarica, bulgarische, bulgarian, vulgaricae, bulgarieicae
bulgareian » bulgarian, bulgarean, bulgarien, vulgareian, bulgarieeian, bulgarieian, bulgarienian
vulgarica » bulgarica, vulgaridad, vulgaris
bulgaria » vulgaria, bulgarieia
bulgar » vulgar, bulgarie
bulgare » vulgare, bulgariee, bulgarie, bulgarien
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 bulgaria) OR (bulgaricae OR (bulgareian OR vulgarica))) OR ((bulgar OR bulgare) OR bulger)).
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or bulgaria) or (bulgaricae or (bulgareian or vulgarica))) or ((bulgar or bulgare) or bulger))*.