Perhaps you should try some spelling variations:
bulgariae » bulgarian, bulgarians, bulgarien, bulgareiae, vulgariae
bulgarie » bulgarien, bulgarian, vulgaris, bulgareie, vulgarie
bulgaricae » bulgarische, bulgarian, bulgaricus, bulgariane, bulgariene, bulgareicae, vulgaricae
bulgareeian » bulgarian, bulgarean, bulgareeeian, vulgareeian
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: ((((bulgariae OR bulgarie) OR bulgaria) OR (bulgaricae OR (bulgareeian OR bulgarica))) OR (bulgar OR bulger)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((bulgariae OR bulgarie) or bulgaria) or (bulgaricae or (bulgareeian or bulgarica))) or (bulgar or bulger))".
• Adding a wildcard symbol may retrieve word variants: ((((bulgariae OR bulgarie) or bulgaria) or (bulgaricae or (bulgareeian or bulgarica))) or (bulgar or bulger))*.