Perhaps you should try some spelling variations:
transfer schemes » transfer scheme, transfer systems
vi transformed » _ transformed, a transformed, have transformed
schemes pt » scheme pt, schemes part, schemes pro
aguas do » aguas de, aguas del
1 data » 3.1 data, 4.1 data
do vi » do vih, dm vi, do v

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 ((1 data) OR (2.1 data)) transfer schemes pt ) OR ( aguas do vi transformed _ macro ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( agua ((1 data) OR (2.1 data)) transfer schemes pt ) or ( aguas do vi transformed _ macro ))~".
• Adding a wildcard symbol may retrieve word variants: (( agua ((1 data) OR (2.1 data)) transfer schemes pt ) or ( aguas do vi transformed _ macro ))*.