Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarie, bulgareiae, vulgariae, bulgarieiae
bulgarieia » bulgariia, bulgarien, bulgarie, bulgareieia, vulgarieia, bulgarieieia
bulgareiae » bulgarian, bulgarie, bulgaricae, bulgareeiae, vulgareiae, bulgarieeiae
bulgarische » bulgarischen, ungarische, bulgareische, vulgarische, bulgarieische
bulgarieische » bulgaristischen, bulgarischen, bulgarisch, bulgareieische, vulgarieische, bulgarieieische
bulgarica » bulgarisch, bulgarian, bulgarien, bulgareica, vulgarica, bulgarieica
bulgaria » bulgareia, vulgaria, bulgarieia
bulgar » bulgare, vulgar, bulgarie
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 bulgarieia)) OR bulgareiae) OR ((bulgarische OR bulgarieische) OR bulgarica)) OR (bulgar OR (bulger OR bulge))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((bulgariae or (bulgaria or bulgarieia)) or bulgareiae) or ((bulgarische OR bulgarieische) or bulgarica)) or (bulgar or (bulger or bulge)))".
• Adding a wildcard symbol may retrieve word variants: ((((bulgariae or (bulgaria or bulgarieia)) or bulgareiae) or ((bulgarische OR bulgarieische) or bulgarica)) or (bulgar or (bulger or bulge)))*.