Perhaps you should try some spelling variations:
transport firms » transport fares, transport fuels, transport air
mule transport » le transport, make transport, role transport
areas can » areas case, areas cash, areas coal
can mule » can make, can move
guias do » guias de, guia de, aguas do
firms a » firms _
guia do » guia de, guias de
cash » case

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 can mule transport firms a ) OR ( ((guias do) OR (guia do)) cash transfers _ a ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( areas can mule transport firms a ) or ( ((guias do) OR (guia do)) cash transfers _ a ))~".
• Adding a wildcard symbol may retrieve word variants: (( areas can mule transport firms a ) or ( ((guias do) OR (guia do)) cash transfers _ a ))*.