Perhaps you should try some spelling variations:
bulgareiae » bulgariae, bulgaria, bulgarean, vulgareiae, bulgarieniae, bulgariaiae
bulgaricae » bulgarische, bulgaria, bulgaricus, bulgariae, bulgariene
bulgarie » bulgarien, bulgaria, vulgaris
bulgarian » bulgaria, hungarian
bulgarica » bulgaria, bulgarisch, bulgarien
bulgare » vulgare, bulgarien, bulgaria
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: ((bulgareiae OR ((bulgaricae OR bulgarie) OR (bulgarian OR bulgarica))) OR (bulgare OR bulger)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgareiae or ((bulgaricae OR bulgarie) or (bulgarian or bulgarica))) or (bulgare or bulger))".
• Adding a wildcard symbol may retrieve word variants: ((bulgareiae or ((bulgaricae OR bulgarie) or (bulgarian or bulgarica))) or (bulgare or bulger))*.