Perhaps you should try some spelling variations:
vulgarisiae » vulgarise, vulgarisee
bulgariae » bulgaricae, bulgaria, bulgarians, bulgareiae, vulgariae, bulgariaiae
bulgarian » bulgaria, hungarian, bulgareian, vulgarian, bulgariaian
bulgariaica » bulgarica, bulgariia, bulgareiaica, vulgariaica, bulgariaiaica
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 (bulgariae OR (bulgarian OR bulgariaica))) OR ((bulgar OR bulgarie) OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((vulgarisiae or (bulgariae or (bulgarian or bulgariaica))) or ((bulgar or bulgarie) or bulger))*.