Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarie, bulgareiae, vulgariae, bulgeriae
vulgarie » vulgarise, vulgaris, vulgare
bulgareiae » bulgarian, bulgarie, bulgaricae, bulgareeiae, vulgareiae, bulgereiae
vulgaricae » bulgaricae, bulgarica, vulgaridad
bulgaria » bulgareia, vulgaria, bulgeria
bulgar » bulgare, vulgar, bulger

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 bulgaria) OR vulgarie) OR bulgareiae) OR vulgaricae) OR (bulgar OR bulge)).
• Adding a wildcard symbol may retrieve word variants: (((((bulgariae or bulgaria) or vulgarie) or bulgareiae) or vulgaricae) or (bulgar or bulge))*.