Perhaps you should try some spelling variations:
transfer systems » transport systems, transit systems
systems versus » systeme versus, systems excursus
cash transfer » cash transfers
a transformed » _ transformed, _ transformer, a transforming
langues do » langues de, languages do, langue de
values der » values de, values gender, values after
der a » der _, der e
1 cao » 1 can, 1 ao, _ cao

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: (( langues do cash transfer systems versus ) OR ( values der a transformed ((1 cao) OR (1 a)) ))~.
• Adding a wildcard symbol may retrieve word variants: (( langues do cash transfer systems versus ) or ( values der a transformed ((1 cao) or (1 a)) ))*.