Perhaps you should try some spelling variations:
bulgarian » bulgaria, hungarian, bulgareian, vulgarian, bulgerian
vulgariae » bulgariae, vulgarise, bulgaricae
vulgarly » vulgar, 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 vulgariae) OR vulgarly) OR bulgar).
• Adding a wildcard symbol may retrieve word variants: (((bulgarian or vulgariae) or vulgarly) or bulgar)*.