Perhaps you should try some spelling variations:
vulgariae » bulgariae, vulgarise, bulgaricae
vulgareie » vulgaris, vulgare, bulgarie
bulgariaeian » bulgarian, bulgarien, bulgarean, bulgareiaeian, vulgariaeian, bulgariaiaeian
bulgarica » bulgaria, bulgarisch, bulgarian, bulgareica, vulgarica, bulgariaica
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: ((vulgariae OR (vulgareie OR (bulgariaeian OR bulgarica))) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((vulgariae or (vulgareie or (bulgariaeian or bulgarica))) or (bulgar or bulger))*.