Perhaps you should try some spelling variations:
bulgare » bulgarie, bulgaria, vulgare, bulgariae, bulgariee
vulgares » vulgaris, vulgar, vulgarly, vulgars, vulgariss, vulgarlys
bulgarien » bulgarian, bulgaria, vulgarien, bulgariaien, bulgarieien
vulgare » vulgar, vulgaris, vulgarly
bulgar » vulgar, bulgaria, bulgarie
bulger » bulge, bulges

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 bulgarien) OR vulgare) OR vulgare) OR (bulgar OR bulger)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((bulgare or vulgares) or bulgarien) or vulgare) or vulgare) or (bulgar OR bulger))".
• Adding a wildcard symbol may retrieve word variants: (((((bulgare or vulgares) or bulgarien) or vulgare) or vulgare) or (bulgar OR bulger))*.