Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarian, bulgareiae, vulgariae, bulgariaiae
bulgariaeian » bulgaricaeian, bulgariaian, bulgarianian, bulgarian, bulgarien, bulgarean, bulgareiaeian, vulgariaeian, bulgariaiaeian
bulgarie » bulgarien, bulgaria, bulgarian, bulgareie, vulgarie, bulgariaie
bulgarica » bulgaria, bulgarisch, bulgarian, bulgareica, vulgarica, bulgariaica
bulgar » bulgare, vulgar, bulgaria
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 (bulgarie OR (bulgariaeian OR bulgarica))) OR (bulgar OR (bulger OR bulges))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgariae or (bulgarie or (bulgariaeian or bulgarica))) or (bulgar or (bulger OR bulges)))".
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or (bulgarie or (bulgariaeian or bulgarica))) or (bulgar or (bulger OR bulges)))*.