Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarie, vulgariae, bulgarieiae
vulgarieia » bulgariia
bulgar » vulgar, bulgarie
bulgare » vulgare, bulgariee, bulgarie, bulgarien
bulgaria » 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 vulgarieia) OR ((((bulgar OR bulgare) OR bulgaria) OR bulgariae) OR bulger))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgariae or vulgarieia) or ((((bulgar OR bulgare) or bulgaria) or bulgariae) or bulger))*".