Perhaps you should try some spelling variations:
bulgare » bulgarie, vulgare, bulgarien, bulgere, bulgariae, bulgariee
vulgares » vulgaris, vulgare, vulgarly
vulgarien » bulgarien, bulgariens, vulgarisee
bulgar » bulger, bulgaria, bulgarie

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 vulgares) OR vulgarien) OR vulgar) OR vulgar) OR bulgar).
• Adding a wildcard symbol may retrieve word variants: (((((bulgare or vulgares) or vulgarien) or vulgar) or vulgar) or bulgar)*.