Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarian, bulgareiae, vulgariae, bulgariaiae
bulgariaian » bulgarian, bulgariia, bulgareiaian, vulgariaian, bulgariaiaian
vulgarica » bulgarica, bulgaricae, vulgaridad
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 ((bulgariaian OR hungarian) OR vulgarica)) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or ((bulgariaian or hungarian) or vulgarica)) or (bulgar or bulger))*.