Perhaps you should try some spelling variations:
den transport » de transport, sea transport, ion transport
transfer 4 » transfer _, transfer 3, transfer a
areas co » areas coal, areas act, areas can
aguas de » aguas del, aguas do, vagues de
co den » chao den, chor den
fare a » care a, fare _, fiacre a
fire a » fire _
4 ao » 4 aoi, 4 a, 4 do
heat » head

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 den transport ((fare a) OR (fire a)) ) OR ( aguas de heat transfer 4 ao ))~.
• Adding a wildcard symbol may retrieve word variants: (( areas co den transport ((fare a) or (fire a)) ) or ( aguas de heat transfer 4 ao ))*.