Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarian
bulgariaeian » bulgaricaeian, bulgariaian, bulgarianian, bulgarian, bulgarean, bulgariia
bulgarie » bulgaria, bulgarian, vulgaris
bulgarien » bulgarian, bulgariann, vulgarisn, bulgaria
bulgarica » bulgaria, bulgarisch, bulgarian
bulgare » vulgare, bulgaria, vulgares
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 (bulgarie OR ((bulgariaeian OR bulgarien) OR bulgarica))) OR (bulgare OR bulger))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgariae or (bulgarie or ((bulgariaeian OR bulgarien) or bulgarica))) or (bulgare or bulger))*".