Perhaps you should try some spelling variations:
bulgare » bulgarie, bulgarien, bulgaria
bulgere » bilgere, burgere, bulgarie, bulgee, bulgese
bulgariae » bulgaricae, bulgaria, bulgarian
vulgare » vulgar, vulgaris, vulgarly
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: (((((bulgare OR bulgere) OR bulgariae) OR vulgare) OR vulgare) OR bulger).
• Adding a wildcard symbol may retrieve word variants: (((((bulgare or bulgere) or bulgariae) or vulgare) or vulgare) or bulger)*.