Perhaps you should try some spelling variations:
bulgare » bulgarie, vulgares, vulgare, bulgere, bulgariee
vulgare » vulgar, vulgaris, vulgarly
vulgaria » vulgaris, vulgari, vulvaria
bulgarien » bulgarian, vulgarien, bulgerien, bulgarieien
bulgaria » vulgaria, bulgeria, bulgarieia
bulgar » vulgar, bulger, 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 vulgare) OR ((bulgaria OR vulgaria) OR bulgarien)) OR bulgar).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgare OR vulgare) or ((bulgaria or vulgaria) or bulgarien)) or bulgar)".
• Adding a wildcard symbol may retrieve word variants: (((bulgare OR vulgare) or ((bulgaria or vulgaria) or bulgarien)) or bulgar)*.