Perhaps you should try some spelling variations:
vulgarisation » polarisation
bulgarieia » bulgariia, bulgarien, bulgarie, bulgareieia, vulgarieia, bulgarieieia
bulgaria » bulgareia, vulgaria, bulgarieia
bulgar » bulgare, vulgar, bulgarie
vulgarly » vulgar, vulgaris
bulger » 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: (((vulgarisation OR bulgaria) OR bulgarieia) OR (((bulgar OR vulgarly) OR bulge) OR bulger)).
• Adding a wildcard symbol may retrieve word variants: (((vulgarisation or bulgaria) or bulgarieia) or (((bulgar or vulgarly) or bulge) or bulger))*.