Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarians, bulgareiae, bulgeriae, bulgariaiae
bulgarie » bulgarien, bulgaria, vulgaris, bulgareie, bulgerie, bulgariaie
bulgarian » bulgaria, hungarian, bulgareian, bulgerian, bulgariaian
bulgerien » bulgarien, bulgariens, algerien
bulgar » bulgare, bulger, bulgaria

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 (bulgarie OR (bulgarian OR bulgerien))) OR (bulgar OR vulgar)).
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or (bulgarie or (bulgarian or bulgerien))) or (bulgar or vulgar))*.