Perhaps you should try some spelling variations:
bulgariae » bulgarian, bulgarie, bulgarians, bulgareiae, vulgariae, bulgarieiae
bulgariaiae » bulgariia, bulgareiaiae, vulgariaiae, bulgarieiaiae
bulgareiae » bulgarian, bulgarie, bulgarean, bulgareeiae, vulgareiae, bulgarieeiae
bulgaricae » bulgarica, bulgarische, bulgarian, bulgareicae, vulgaricae, bulgarieicae
bulgar » bulgare, vulgar, bulgarie
bulgaria » bulgareia, vulgaria, bulgarieia
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 bulgariaiae) OR bulgareiae) OR bulgaricae) OR ((bulgar OR bulgaria) OR bulger)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((bulgariae or bulgariaiae) or bulgareiae) or bulgaricae) or ((bulgar OR bulgaria) or bulger))".
• Adding a wildcard symbol may retrieve word variants: ((((bulgariae or bulgariaiae) or bulgareiae) or bulgaricae) or ((bulgar OR bulgaria) or bulger))*.