Perhaps you should try some spelling variations:
bulgare » vulgare, bulgaria, vulgares, bulgere, bulgariae
vulgarien » bulgariens, vulgarisee, vulgarises
bulgarien » bulgarian, bulgaria, bulgariann, vulgarisn, vulgarien, bulgerien, bulgariaien
bulgarie » bulgaria, bulgarian, vulgaris, vulgarie, bulgerie, bulgariaie
bulgar » vulgar, bulger, bulgaria

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: ((bulgaars OR ((bulgare OR vulgarien) OR (bulgarien OR bulgarie))) OR bulgar).
• Adding a wildcard symbol may retrieve word variants: ((bulgaars or ((bulgare or vulgarien) or (bulgarien or bulgarie))) or bulgar)*.