Perhaps you should try some spelling variations:
bulgariae » bulgarian, bulgarie, bulgarians, vulgariae, bulgarieiae
bulgaricae » bulgarische, bulgarian, bulgarie, bulgariane, bulgariene, vulgaricae, bulgarieicae
bulgareian » bulgarian, bulgarean, bulgarien, vulgareian, bulgarieeian, bulgarieian, bulgarienian
bulgarica » bulgarisch, bulgarian, bulgarien, vulgarica, bulgarieica
bulgaria » vulgaria, bulgarieia
bulgar » vulgar, bulgarie
bulgare » vulgare, bulgariee, bulgarie, bulgarien
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: (((bulgariae OR bulgaria) OR (bulgaricae OR (bulgareian OR bulgarica))) OR ((bulgar OR bulgare) OR (bulger OR bulge))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae or bulgaria) or (bulgaricae or (bulgareian or bulgarica))) or ((bulgar or bulgare) or (bulger OR bulge)))".
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or bulgaria) or (bulgaricae or (bulgareian or bulgarica))) or ((bulgar or bulgare) or (bulger OR bulge)))*.