Perhaps you should try some spelling variations:
vulgareiae » bulgariae, vulgarise
bulgarisch » bulgarische, bulgarischen, bulgareisch, vulgarisch, bulgerisch
bulgariaian » bulgarian, bulgariia, bulgareiaian, vulgariaian, bulgeriaian
vulgarisch » bulgarische, vulgaris, ungarisch
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: ((vulgareiae OR (bulgarisch OR (bulgariaian OR vulgarisch))) OR (bulgar OR bulge)).
• Adding a wildcard symbol may retrieve word variants: ((vulgareiae or (bulgarisch or (bulgariaian or vulgarisch))) or (bulgar or bulge))*.