Perhaps you should try some spelling variations:
bulgarie » bulgarien, bulgaria, bulgarian, bulgareie, vulgarie, bulgerie
bulgariia » bulgaria, bulgaricae, bulgarian, bulgareiia, vulgariia, bulgeriia
bulgarica » bulgaria, bulgarisch, bulgarian, bulgareica, vulgarica, bulgerica
bulgar » bulgare, vulgar, bulger

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