Perhaps you should try some spelling variations:
bulgariae » bulgaria, bulgarian, bulgarians, bulgareiae, vulgariae, bulgariaiae
bulgarie » bulgarien, bulgaria, bulgarian, bulgareie, vulgarie, bulgariaie
bulgaricae » bulgarica, bulgarische, bulgaria, bulgareicae, vulgaricae, bulgariaicae
bulgareicae » bulgarica, bulgareeicae, vulgareicae, bulgariaeicae
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 bulgarie) OR (bulgaricae OR bulgareicae)) OR (bulgar OR (bulger OR bulge))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae or bulgarie) or (bulgaricae or bulgareicae)) or (bulgar or (bulger OR bulge)))".
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or bulgarie) or (bulgaricae or bulgareicae)) or (bulgar or (bulger OR bulge)))*.