Perhaps you should try some spelling variations:
transport fuels » transport fuel, transport fares, transport access
sea transport » road transport, bus transport
transfers 3 » transfers _, transfer 3, transfer _
areas coal » areas can, areas co
coal sea » coal seam, coal seams, coal use
de casos » de cas
fuels a » fuels _, fuel a, fuels 4
de cash » de cas, do cash, de caso
3 ao » 3 a, 3 co, 3 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 coal sea transport fuels a ) OR ( guias ((de cash) OR (de casos)) transfers 3 ao ))~.
• Adding a wildcard symbol may retrieve word variants: (( areas coal sea transport fuels a ) or ( guias ((de cash) or (de casos)) transfers 3 ao ))*.