Perhaps you should try some spelling variations:
transfer schemes » transfer scheme, transfer systems
transformed a » transformed _, transformed 1, transformer 1
der transfer » der transfers, den transfer, peer transfer
schemes fair » schemes fare, schemes after, schemes prior
agua 2 » agua e, agua _, agua y
a acao » a adocao
2 der » _ der
et a » et la, e a

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: (( agua 2 der transfer schemes fair ) OR ( agua ((et al) OR (et a)) transformed a acao ))~.
• Adding a wildcard symbol may retrieve word variants: (( agua 2 der transfer schemes fair ) or ( agua ((et al) or (et a)) transformed a acao ))*.