Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarians
bulgariaeian » bulgaricaeian, bulgariaian, bulgariansian, bulgarien, bulgarean, bulgariia
bulgarian » bulgaria, hungarian
bulgarica » bulgaria, bulgarisch, bulgarien
bulgarie » bulgarien, bulgaria, vulgaris
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 (bulgariaeian OR bulgarica))) OR (bulgarie OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or (bulgarian or (bulgariaeian or bulgarica))) or (bulgarie or bulger))*.