Perhaps you should try some spelling variations:
bulgarie » bulgaria, bulgarian, vulgaris, bulgareie, vulgarie, bulgariaie
bulgarien » bulgarian, bulgariann, vulgarisn, bulgaria, bulgareien, vulgarien, bulgariaien
vulgare » vulgar, vulgaris, vulgarly
bulgar » bulgare, vulgar, bulgaria
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: ((((bulgarie OR bulgarien) OR vulgare) OR vulgare) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((((bulgarie or bulgarien) or vulgare) or vulgare) or (bulgar or bulger))*.