Perhaps you should try some spelling variations:
transport fuels » transport fuel, transport fares, transport access
sea transport » road transport, bus transport
transfer 3 » transfer _, transfer 4, transfer a
areas act » areas a, areas air, areas co
de casos » de cas
act sea » past sea
fuels a » fuels _, fuel a, fuels 4
de caso » de cas, de castro, de cause
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 act sea transport fuels a ) OR ( guias ((de caso) OR (de casos)) transfer 3 ao ))~.
• Adding a wildcard symbol may retrieve word variants: (( areas act sea transport fuels a ) or ( guias ((de caso) or (de casos)) transfer 3 ao ))*.