Perhaps you should try some spelling variations:
vulgarise » vulgarisee, vulgarises, vulgaris
bulgaricae » bulgarica, bulgarische, bulgaria, bulgareicae, vulgaricae, bulgericae
bulgareian » bulgarian, bulgarean, bulgaria, bulgareeian, vulgareian, bulgereian
vulgarisch » bulgarisch, bulgarische, vulgaris
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: ((vulgarise OR (bulgaricae OR (bulgareian OR vulgarisch))) OR (bulgar OR bulge)).
• Adding a wildcard symbol may retrieve word variants: ((vulgarise or (bulgaricae or (bulgareian or vulgarisch))) or (bulgar or bulge))*.