Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarian, bulgareiae, vulgariae, bulgariaiae
vulgarise » vulgarisee, vulgarises, vulgaris
bulgarica » bulgaria, bulgarisch, bulgarian, bulgareica, vulgarica, bulgariaica
bulgariaica » bulgariia, bulgareiaica, vulgariaica, bulgariaiaica
bulgar » bulgare, vulgar, bulgaria
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: (((bulgariae OR vulgarise) OR (bulgariae OR (bulgarica OR bulgariaica))) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or vulgarise) or (bulgariae or (bulgarica or bulgariaica))) or (bulgar or bulger))*.