Perhaps you should try some spelling variations:
vulgare » vulgar, vulgaris, vulgarly
bulgerian » bulgarian, bulgarians, eulerian
bulgerien » bulgarien, bulgariens, bulgarian
bulgaria » bulgareia, vulgaria, bulgeria
bulgar » bulgare, vulgar, bulger

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: ((vulgare OR (bulgerian OR (bulgerien OR bulgaria))) OR (bulgar OR bulge))*.