Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarie, bulgareiae, vulgariae, bulgeriae
bulgeriae » bulgaricae, bulgarian, bulgarie
bulgareicae » bulgaricae, bulgareeicae, vulgareicae, bulgereicae
bulgarica » bulgarisch, bulgarian, bulgarien, bulgareica, vulgarica, bulgerica
bulgaria » bulgareia, vulgaria, bulgeria
bulgar » bulgare, vulgar, bulger

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 vulgareeeiae) OR ((bulgareicae OR bulgarica) OR bulgaria)) OR (bulgar OR bulge)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((bulgariae or bulgeriae) or vulgareeeiae) or ((bulgareicae OR bulgarica) or bulgaria)) or (bulgar or bulge))".
• Adding a wildcard symbol may retrieve word variants: ((((bulgariae or bulgeriae) or vulgareeeiae) or ((bulgareicae OR bulgarica) or bulgaria)) or (bulgar or bulge))*.