Perhaps you should try some spelling variations:
federal transfers » central transfers, fiscal transfers
transfers system » transfer system, transfer systems, transport system
data transfer » cash transfer, heat transfer
do federal » cbo federal, der federal, des federal
system cas » system case, system can, systems case
transfer a » transfer _, transfer 3, transfer 4
aguas dol » aguas del, aguas de
aguas do » aguas de, aguas del
dol data » mol data, pol data, soil data
a acao » a adocao

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: (( aguas do federal transfers system cas ) OR ( aguas dol data transfer a acao ))~.
• Adding a wildcard symbol may retrieve word variants: (( aguas do federal transfers system cas ) or ( aguas dol data transfer a acao ))*.