Perhaps you should try some spelling variations:
bulgariia » bulgaria, bulgarian, bulgarie
bulgaricae » bulgarische, bulgaria, bulgarian, bulgariae, bulgariane
bulgarica » bulgaria, bulgarisch, bulgarian
bulgarien » bulgarian, bulgaria
bulgare » bulgarie, vulgare, 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: ((bulgariia OR (bulgaricae OR (bulgarica OR bulgarien))) OR (bulgare OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((bulgariia or (bulgaricae or (bulgarica or bulgarien))) or (bulgare or bulger))*.