Perhaps you should try some spelling variations:
bulgariae » bulgarian, bulgarians, bulgarien
vulgares » vulgaris, vulgare, vulgar
bulgarie » bulgarien, bulgarian, vulgaris
bulgaricae » bulgarica, bulgarische, bulgarian
bulger » bulge
bulges » bulge

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 vulgares) OR bulgarie) OR (bulgaricae OR bulgaria)) OR (bulger OR bulges)).
• Adding a wildcard symbol may retrieve word variants: ((((bulgariae or vulgares) or bulgarie) or (bulgaricae or bulgaria)) or (bulger or bulges))*.