Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarian
bulgariaeian » bulgaricaeian, bulgariaian, bulgarianian, bulgarian, bulgarien, bulgarean
bulgarie » bulgarien, bulgaria, bulgarian
bulgareica » bulgarica, bulgaria, bulgaricae, vulgareica, bulgarienica, bulgariaica
bulgare » vulgare, bulgarien, bulgaria
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 bulgareica))) OR (bulgare OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or (bulgarie or (bulgariaeian or bulgareica))) or (bulgare or bulger))*.