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