Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarie, bulgareiae, vulgariae, bulgariaiae
bulgarian » bulgaria, hungarian, bulgareian, vulgarian, bulgariaian
bulgariaie » bulgaria, bulgarie, bulgarians, bulgareiaie, vulgariaie, bulgariaiaie
bulgarica » bulgaria, bulgarisch, bulgarien, bulgareica, vulgarica, bulgariaica
bulgar » bulgare, vulgar, bulgaria
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 bulgarian) OR bulgariaie) OR ((bulgariae OR bulgarian) OR bulgarica)) OR (bulgar OR (bulger OR bulge))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((bulgariae OR bulgarian) or bulgariaie) or ((bulgariae OR bulgarian) or bulgarica)) or (bulgar or (bulger or bulge)))".
• Adding a wildcard symbol may retrieve word variants: ((((bulgariae OR bulgarian) or bulgariaie) or ((bulgariae OR bulgarian) or bulgarica)) or (bulgar or (bulger or bulge)))*.