Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarian
vulgaricae » bulgaricae, bulgarica, vulgaridad
bulgareiae » bulgaria, bulgarian, bulgarie
bulgarische » bulgarischen, ungarische
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 vulgaricae) OR bulgareiae) OR bulgarische) OR (vulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((((bulgariae or vulgaricae) or bulgareiae) or bulgarische) or (vulgar or bulger))*.