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