Perhaps you should try some spelling variations:
bulgareiae » bulgariae, bulgarian, bulgarie, bulgareeiae, vulgareiae, bulgarieeiae
bulgaricae » bulgarische, bulgarian, bulgarie, bulgariane, bulgariene, bulgariee, bulgareicae, vulgaricae, bulgarieicae
bulgarica » bulgarian, bulgarien, bulgarie, bulgareica, vulgarica, bulgarieica
bulgarisch » bulgarische, bulgarischen, bulgareisch, vulgarisch, bulgarieisch
bulgar » bulgare, vulgar, bulgarie
bulgaria » bulgareia, vulgaria, bulgarieia
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: (((bulgareiae OR bulgareiae) OR (bulgaricae OR (bulgarica OR bulgarisch))) OR ((bulgar OR bulgaria) OR (bulger OR bulge))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgareiae or bulgareiae) or (bulgaricae or (bulgarica OR bulgarisch))) or ((bulgar or bulgaria) or (bulger or bulge)))".
• Adding a wildcard symbol may retrieve word variants: (((bulgareiae or bulgareiae) or (bulgaricae or (bulgarica OR bulgarisch))) or ((bulgar or bulgaria) or (bulger or bulge)))*.