Perhaps you should try some spelling variations:
bulgariae » bulgaria, bulgarian, bulgarians, bulgareiae, vulgariae, bulgariaiae
bulgarie » bulgarien, bulgaria, bulgarian, bulgareie, vulgarie, bulgariaie
bulgaricae » bulgarica, bulgarische, bulgaria, bulgareicae, vulgaricae, bulgariaicae
vulgaricae » bulgarica, vulgaridad, vulgarise
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 bulgarie) OR bulgaricae) OR vulgaricae) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((((bulgariae or bulgarie) or bulgaricae) or vulgaricae) or (bulgar or bulger))*.