Perhaps you should try some spelling variations:
bulgaricae » bulgarica, bulgarische, bulgarian, vulgaricae, bulgarieicae
bulgaria » vulgaria, bulgarieia
bulgar » vulgar, bulgarie
bulgare » vulgare, bulgariee, bulgarie, bulgarien, vulgares
vulgare » vulgar, vulgaris, vulgarly
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: ((bulgaria OR bulgaricae) OR ((bulgar OR (bulgare OR vulgare)) OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((bulgaria or bulgaricae) or ((bulgar or (bulgare or vulgare)) or bulger))*.