Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarie, vulgariae, bulgariaiae, bulgarieiae
bulgarian » bulgaria, hungarian, vulgarian, bulgariaian, bulgarieian
vulgarische » bulgarische, bulgarischen, bulgarischer
vulgarian » bulgarians, vulgaridad, bulgaria
bulgarica » bulgaria, bulgarisch, bulgarien, vulgarica, bulgariaica, bulgarieica
bulgar » vulgar, bulgaria, bulgarie
bulgare » vulgare, bulgariae, bulgariee, bulgarie, bulgarien
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 bulgarian) OR (vulgarische OR (vulgarian OR bulgarica))) OR ((bulgar OR (bulgare OR (bulgariae OR bulgarian))) OR bulger))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae OR bulgarian) or (vulgarische or (vulgarian or bulgarica))) or ((bulgar or (bulgare or (bulgariae OR bulgarian))) or bulger))*".