Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarians
bulgeriae » bulgaricae, bulgarian, bulweria, bulgeiae, bulgesiae
bulger » bulge, bulges
bulgarie » bulgarien, bulgarian, vulgaris
bulgare » vulgare, bulgarien, vulgares

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