Perhaps you should try some spelling variations:
vulgarisiae » vulgarise, vulgarisee
bulgarische » bulgarischen, ungarische, bulgareische, vulgarische, bulgarieische
bulgarica » bulgarisch, bulgarian, bulgarien, bulgareica, vulgarica, bulgarieica
bulgaria » bulgareia, vulgaria, bulgarieia
bulgar » bulgare, vulgar, bulgarie
vulgarie » vulgarise, vulgaris, vulgare
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 (bulgaria OR bulgarica))) OR ((bulgar OR vulgarie) OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((vulgarisiae or (bulgarische or (bulgaria or bulgarica))) or ((bulgar or vulgarie) or bulger))*.