Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarians, bulgareiae, vulgariae
bulgariaeian » bulgaricaeian, bulgarianian, bulgariansian, bulgarian, bulgarien, bulgarean, bulgareiaeian, vulgariaeian
bulgarie » bulgarien, bulgarian, vulgaris, bulgareie, vulgarie
bulgareia » bulgariia, bulgarian, bulgare, bulgareeia, vulgareia
bulgaria » bulgareia, vulgaria
bulgar » bulgare, vulgar
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 ((bulgarie OR bulgaria) OR (bulgariaeian OR bulgareia))) OR (bulgar OR bulger)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgariae or ((bulgarie OR bulgaria) or (bulgariaeian or bulgareia))) or (bulgar or bulger))".
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or ((bulgarie OR bulgaria) or (bulgariaeian or bulgareia))) or (bulgar or bulger))*.