Perhaps you should try some spelling variations:
bulgariaiae » bulgaricae, bulgariae, bulgariia, bulgareiaiae, vulgariaiae
bulgarie » bulgarien, bulgarian, vulgaris, bulgareie, vulgarie
bulgareian » bulgarian, bulgarean, bulgarien, bulgareeian, vulgareian
bulgarica » bulgarisch, bulgarian, bulgarien, bulgareica, vulgarica
bulgaria » bulgareia, vulgaria
bulgar » bulgare, vulgar
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: ((bulgariaiae OR (bulgarie OR (bulgareian OR (bulgarica OR bulgaria)))) OR (bulgar OR bulger)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgariaiae or (bulgarie or (bulgareian or (bulgarica OR bulgaria)))) or (bulgar or bulger))".
• Adding a wildcard symbol may retrieve word variants: ((bulgariaiae or (bulgarie or (bulgareian or (bulgarica OR bulgaria)))) or (bulgar or bulger))*.