Perhaps you should try some spelling variations:
green transport » urban transport, carbon transport
costs transfer » cost transfer, cast transfer, loss transfer
transfer field » transfers field, transfer file, transfer fees
3 costs » 3 cost, 4 costs
field 4 » field _, field 3
luis 3 » luis f, luis c, luis a
luis 2 » luis f, luis c, luis a

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: (( luis 3 costs transfer field 4 ) OR ( luis 2 green transport _ macao ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis 3 costs transfer field 4 ) or ( luis 2 green transport _ macao ))*.