Perhaps you should try some spelling variations:
sea transport » road transport
a transfer » cash transfer, heat transfer, data transfer
transfer 3 » transfer _, transfer 4, transfer a
areas co » areas coal, areas act, areas can
guias de » guia de, guide de, aguas de
fuel a » fuel _, fuel tax, fuel gas
de a » de la, de sa, der a
3 o » 3 co, 3 do, 3 ao

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 co ((sea transport) OR (bus transport)) fuel a ) OR ( guias de a transfer 3 o ))~.
• Adding a wildcard symbol may retrieve word variants: (( areas co ((sea transport) or (bus transport)) fuel a ) or ( guias de a transfer 3 o ))*.