Perhaps you should try some spelling variations:
transport signal » transform signal, transport design, transport annual
case transfers » cash transfers, based transfers, cash transfer's
sea transport » road transport, bus transport
transfers 6 » transfers _, transfers 3, transfers 2
signal 3 » signals 3, signal _, signal 4
own sea » own ses, own seed, own real
guias 3 » guias de
6 cas » 6 case, 6 can, _ cas

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: (( (aguas OR agua) own sea transport signal 3 ) OR ( guias 3 case transfers 6 cas ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (aguas OR agua) own sea transport signal 3 ) or ( guias 3 case transfers 6 cas ))~".
• Adding a wildcard symbol may retrieve word variants: (( (aguas OR agua) own sea transport signal 3 ) or ( guias 3 case transfers 6 cas ))*.