Perhaps you should try some spelling variations:
vulgaria » bulgaria, vulgaris, vulgari
vulgariae » bulgariae, vulgarise, vulgarie, bulgaricae
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: (((vulgaria OR vulgariae) OR (vulgaria OR (bulgarica OR bulgariaica))) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: (((vulgaria or vulgariae) or (vulgaria or (bulgarica or bulgariaica))) or (bulgar or bulger))*.