Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarians
bulgeriae » bulgaricae, bulgarian, bulweria, bulgeiae, bulgesiae
bulgarie » bulgarien, bulgarian, vulgaris
bulger » bulge, bulges
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 bulgarie)) OR ((bulger OR bulgaria) OR bulgare)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgariae or (bulgeriae OR bulgarie)) or ((bulger or bulgaria) or bulgare))".
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or (bulgeriae OR bulgarie)) or ((bulger or bulgaria) or bulgare))*.