Perhaps you should try some spelling variations:
ocean transport » urban transport, green transport, sea transport
transport fuel » transport fares
data transfer » cash transfer, heat transfer
transfer em » transfer beim, transfer der, transfer fee
luis debt » luis de, u.s debt
f ocean » _ ocean, 1 ocean, 3 ocean
macao » macro, macau, cacao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( luis debt data transfer em acao ) or ( luis f ocean transport fuel macao ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( luis debt data transfer em acao ) OR ( luis f ocean transport fuel macao )).
• Adding a wildcard symbol may retrieve word variants: (( luis debt data transfer em acao ) or ( luis f ocean transport fuel macao ))*.