Perhaps you should try some spelling variations:
transfer schemes » transfer scheme, transfer systems
schemes prior » schemes pro, schemes fair
a transformed » _ transformed, _ transformer, a transforming
transformed a » transformed _, transformed 1, transformer 1
agua et » agua e
a macao » a macro, _ macao
2 der » _ der
et a » et al, 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 ((_ den) OR (2 der)) transfer schemes prior ) OR ( agua et a transformed a macao ))~.
• Adding a wildcard symbol may retrieve word variants: (( agua ((_ den) or (2 der)) transfer schemes prior ) or ( agua et a transformed a macao ))*.