Perhaps you should try some spelling variations:
bulgarian » bulgaria, hungarian, bulgareian, vulgarian, bulgerian
bulgarien » bulgaria, bulgareien, vulgarien, bulgerien
bulgariaie » bulgariae, bulgaria, bulgarie, bulgareiaie, vulgariaie, bulgeriaie
vulgarise » vulgarisee, vulgarises, vulgaris
bulgar » bulgare, vulgar, bulger

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: (((bulgarian OR bulgarien) OR (bulgariaie OR vulgarise)) OR bulgar).
• Adding a wildcard symbol may retrieve word variants: (((bulgarian or bulgarien) or (bulgariaie or vulgarise)) or bulgar)*.