Perhaps you should try some spelling variations:
bulgariae » bulgaria, bulgarian, bulgarie, vulgariae, bulgariaiae, bulgarieiae
bulgaricae » bulgarische, bulgaria, bulgarian, bulgariae, bulgariane, vulgaricae, bulgariaicae, bulgarieicae
bulgarica » bulgaria, bulgarisch, bulgarian, vulgarica, bulgariaica, bulgarieica
bulgariia » bulgaria, bulgarian, bulgarie, vulgariia, bulgariaiia, bulgarieiia
bulgar » vulgar, bulgaria, bulgarie
bulgare » vulgare, bulgariae, bulgariee, bulgarie, bulgaria
bulgarien » vulgarien, bulgariaien, bulgarieien, bulgarian, 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 (bulgaricae OR (bulgarica OR bulgariia))) OR ((bulgar OR (bulgare OR bulgarien)) OR bulger)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgariae or (bulgaricae or (bulgarica or bulgariia))) or ((bulgar or (bulgare OR bulgarien)) or bulger))".
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or (bulgaricae or (bulgarica or bulgariia))) or ((bulgar or (bulgare OR bulgarien)) or bulger))*.