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
cbo federal » b federal, core federal, from federal
system cas » system case, system can, systems case
aguas cbo » aguas do
3 cao » 3 can, 3 cad, 3 cam
3 ao » 3 a, 3 co, 3 do
soil » oil

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 cbo federal transfers system cas ) OR ( aguas soil data transfer ((3 cao) OR (3 ao)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aguas cbo federal transfers system cas ) or ( aguas soil data transfer ((3 cao) OR (3 ao)) ))~".
• Adding a wildcard symbol may retrieve word variants: (( aguas cbo federal transfers system cas ) or ( aguas soil data transfer ((3 cao) OR (3 ao)) ))*.