Perhaps you should try some spelling variations:
bulgare » bulgarie, vulgare, bulgaria, bulgere, bulgariae
bulgarian » bulgaria, hungarian, vulgarian, bulgerian, bulgariaian
bulgarien » bulgaria, vulgarien, bulgerien, bulgariaien
vulgarien » bulgariens, vulgarisee, vulgarises
vulgaris » bulgaria, vulgar
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 ((bulgarian OR (bulgarien OR vulgarien)) OR vulgaris)) OR bulgar).
• Adding a wildcard symbol may retrieve word variants: ((bulgare or ((bulgarian or (bulgarien or vulgarien)) or vulgaris)) or bulgar)*.