Perhaps you should try some spelling variations:
vulgarie » vulgaris, vulgare, bulgarie
vulgarise » vulgarisee, vulgaris, vulgariter
vulgarises » vulgarisees, vulgariss, vulgariters, vulgarisee, vulgaris, vulgares
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: ((bulgaria OR ((vulgarie OR vulgarise) OR vulgarises)) OR bulgar).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgaria or ((vulgarie OR vulgarise) or vulgarises)) or bulgar)".
• Adding a wildcard symbol may retrieve word variants: ((bulgaria or ((vulgarie OR vulgarise) or vulgarises)) or bulgar)*.