Perhaps you should try some spelling variations:
vulgariae » vulgarise, bulgaricae, vulgaridad
bulgarien » bulgarian, bulgaria, bulgareien, vulgarien, bulgariaien
bulgar » bulgare, vulgar, bulgaria
bulgariae » bulgareiae, vulgariae, bulgariaiae, bulgaricae, bulgaria, bulgarian
vulgare » vulgar, vulgaris, vulgarly
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: ((vulgariae OR bulgarien) OR ((bulgar OR (bulgariae OR vulgare)) OR bulger))*.