Perhaps you should try some spelling variations:
vulgariae » bulgariae, vulgarise, bulgaricae
bulgariia » bulgaria, bulgarica, bulgaricae, bulgareiia, vulgariia, bulgeriia
bulgar » bulgare, vulgar, bulger
bulgarian » bulgareian, vulgarian, bulgerian, bulgaria, hungarian
vulgaris » bulgaria, vulgar

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: ((vulgariae OR bulgariia) OR ((bulgar OR (bulgarian OR vulgaris)) OR bulge)).
• Adding a wildcard symbol may retrieve word variants: ((vulgariae or bulgariia) or ((bulgar or (bulgarian or vulgaris)) or bulge))*.