Perhaps you should try some spelling variations:
bulgare » bulgarien, bulgaria, vulgares, vulgare, bulgere, bulgariae
vulgare » vulgar, vulgaris, vulgarly
bulgarie » bulgarien, bulgaria, bulgarian, vulgarie, bulgerie, bulgariaie
vulgariens » bulgariens, vulgaris, bulgarien
bulgerian » bulgarian, bulgarians, bulgaria
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: (((bulgare OR vulgare) OR (bulgarie OR (vulgariens OR bulgerian))) OR bulgar).
• Adding a wildcard symbol may retrieve word variants: (((bulgare or vulgare) or (bulgarie or (vulgariens or bulgerian))) or bulgar)*.