Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarian, bulgareiae, vulgariae, bulgariaiae
bulgareiae » bulgaria, bulgarian, bulgarie, bulgareeiae, vulgareiae, bulgariaeiae
bulgarische » bulgarischen, ungarische, bulgareische, vulgarische, bulgariaische
bulgarica » bulgaria, bulgarisch, bulgarian, bulgareica, vulgarica, bulgariaica
bulgariia » bulgaria, bulgaricae, bulgarian, bulgareiia, vulgariia, bulgariaiia
vulgariia » vulgaridad, bulgaria, vulgaris
bulgar » bulgare, vulgar, bulgaria
bulger » bulge, 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 bulgareiae) OR (bulgarische OR (bulgarica OR (bulgariia OR vulgariia)))) OR (bulgar OR bulger)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae OR bulgareiae) or (bulgarische or (bulgarica or (bulgariia or vulgariia)))) or (bulgar or bulger))".
• Adding a wildcard symbol may retrieve word variants: (((bulgariae OR bulgareiae) or (bulgarische or (bulgarica or (bulgariia or vulgariia)))) or (bulgar or bulger))*.