Perhaps you should try some spelling variations:
bulgarien » bulgarian, bulgaria, bulgareien, vulgarien, bulgerien
bulgerie » bulgarie, bulgaria, algerie
bulgar » bulgare, vulgar, bulger
bulgariae » bulgareiae, vulgariae, bulgeriae, bulgaricae, bulgaria, bulgarian

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: ((bulgarien OR bulgerie) OR (bulgar OR bulgariae)).
• Adding a wildcard symbol may retrieve word variants: ((bulgarien or bulgerie) or (bulgar or bulgariae))*.