Perhaps you should try some spelling variations:
vulgarisiae » vulgarise, vulgarisee
bulgarische » bulgarischen, ungarische, bulgareische, vulgarische, bulgariaische
bulgarian » bulgaria, hungarian, bulgareian, vulgarian, bulgariaian
bulgarica » bulgaria, bulgarisch, bulgarien, bulgareica, vulgarica, bulgariaica
bulgar » bulgare, vulgar, bulgaria
bulgarie » bulgareie, vulgarie, bulgariaie, bulgarien, bulgaria, vulgaris
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: ((vulgarisiae OR (bulgarische OR (bulgarian OR bulgarica))) OR ((bulgar OR bulgarie) OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((vulgarisiae or (bulgarische or (bulgarian or bulgarica))) or ((bulgar or bulgarie) or bulger))*.