Perhaps you should try some spelling variations:
federal transfers » central transfers, fiscal transfers
transfers system » transfer system, transfer systems, transport system
ideias transfer » federal transfer
transfer em » transfer fee, transfer _, transfer a
de federal » _ federal, a federal
system can » systems can, system a, systems case
acao » cacao, macao

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 de federal transfers system can ) OR ( aguas do ideias transfer em (acao OR cao) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aguas de federal transfers system can ) or ( aguas do ideias transfer em (acao OR cao) ))~".
• Adding a wildcard symbol may retrieve word variants: (( aguas de federal transfers system can ) or ( aguas do ideias transfer em (acao OR cao) ))*.