Perhaps you should try some spelling variations:
bulgariae » bulgarian, bulgarians, bulgarien, bulgareiae, vulgariae
bulgaricae » bulgarische, bulgarian, bulgarischen, bulgariane, bulgariene, bulgareicae, vulgaricae
bulgareian » bulgarian, bulgarean, bulgarien, bulgareeian, vulgareian
bulgarica » bulgarisch, bulgarian, bulgarien, bulgareica, vulgarica
bulgaria » bulgareia, vulgaria
bulgar » bulgare, vulgar
bulgarie » bulgareie, vulgarie, bulgarien, bulgarian, vulgaris
bulger » bulge
bulges » bulge

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 bulgarie) OR (bulger OR bulges))).
• 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 bulgarie) or (bulger OR bulges)))".
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or bulgaria) or (bulgaricae or (bulgareian or bulgarica))) or ((bulgar or bulgarie) or (bulger OR bulges)))*.