Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarie, bulgareiae, vulgariae, bulgeriae
bulgareiae » bulgarian, bulgarie, bulgaricae, bulgareeiae, vulgareiae, bulgereiae
bulgaria » bulgareia, vulgaria, bulgeria
bulgar » bulgare, vulgar, bulger
vulgare » vulgar, vulgaris, vulgarly

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 (bulgariae OR bulgareiae)) OR (bulgar OR vulgare)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgaria or (bulgariae OR bulgareiae)) or (bulgar or vulgare))".
• Adding a wildcard symbol may retrieve word variants: ((bulgaria or (bulgariae OR bulgareiae)) or (bulgar or vulgare))*.