Perhaps you should try some spelling variations:
vulgarise » vulgarisee, vulgarises, vulgaris
vulgarien » bulgarien, bulgariens, vulgarisee
bulgar » vulgar, bulgaria, bulgarie
bulgare » vulgare, bulgariae, bulgariee, bulgarie, bulgarien
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: ((vulgarise OR vulgarien) OR ((bulgar OR bulgare) OR bulger))*.