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