Perhaps you should try some spelling variations:
transport firms » transport fares, transport fuels, transport air
cash transfer » cash transfers
areas cows » areas co, areas coal
cows road » costs road, core road, cows dead
guias do » guia do, guias de, guia de
firms a » firms _
3 ao » 3 a, 3 co, 3 ai
3 do » _ do, 3 d, 1 do

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: (( areas cows road transport firms a ) OR ( guias do cash transfer ((3 ao) OR (3 do)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( areas cows road transport firms a ) or ( guias do cash transfer ((3 ao) OR (3 do)) ))~".
• Adding a wildcard symbol may retrieve word variants: (( areas cows road transport firms a ) or ( guias do cash transfer ((3 ao) OR (3 do)) ))*.