Perhaps you should try some spelling variations:
bulgariae » bulgaria, bulgarian, bulgarie, bulgareiae, bulgariaiae, bulgarieiae
bulgaricae » bulgarica, bulgarische, bulgaria, bulgareicae, bulgariaicae, bulgarieicae
bulgar » bulgare, bulgaria, bulgarie
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 bulgaricae) OR ((bulgar OR vulgar) OR bulger))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgariae or bulgaricae) or ((bulgar OR vulgar) or bulger))*".