Perhaps you should try some spelling variations:
bulgariae » bulgaria, bulgarian, bulgarie, bulgareiae, vulgariae, bulgariaiae
bulgaricae » bulgarische, bulgaria, bulgarian, bulgariae, bulgariane, bulgareicae, vulgaricae, bulgariaicae
bulgarica » bulgaria, bulgarisch, bulgarian, bulgareica, vulgarica, bulgariaica
bulgariaica » bulgariia, bulgareiaica, vulgariaica, bulgariaiaica
bulgar » bulgare, vulgar, bulgaria
bulger » 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 (bulgaricae OR (bulgarica OR bulgariaica))) OR (bulgar OR (bulger OR bulge))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgariae or (bulgaricae or (bulgarica or bulgariaica))) or (bulgar or (bulger OR bulge)))".
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or (bulgaricae or (bulgarica or bulgariaica))) or (bulgar or (bulger OR bulge)))*.