Perhaps you should try some spelling variations:
marine transport » maritime transport, carbon transport
transport system » transport sector
sea transport » road transport, bus transport
transport de » transport der, transport des, transport du
de marine » de marie, de martino, de mariage
aguas di » aguas de, aguas do, aguas del
gui de » guia de, guide de, guias de
acao » cacao, macao, cao

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: (( gui de marine transport system a ) OR ( aguas di sea transport de acao ))~.
• Adding a wildcard symbol may retrieve word variants: (( gui de marine transport system a ) or ( aguas di sea transport de acao ))*.