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