Perhaps you should try some spelling variations:
transport signal » transform signal, transport design, transport annual
sea transport » road transport, bus transport
signal 4 » signal _, signal 3, signal 6
own sea » own ses, own seed, own real
guias 3 » guias de
3 cash » _ cash, 3 case, a cash
6 cas » 6 case, 6 can, 4 cas
_ cas » _ case, _ cash, _ cast
aguas » agus, agua

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 own sea transport signal 4 ) OR ( guias 3 cash transfers ((6 cas) OR (_ cas)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aguas own sea transport signal 4 ) or ( guias 3 cash transfers ((6 cas) OR (_ cas)) ))~".
• Adding a wildcard symbol may retrieve word variants: (( aguas own sea transport signal 4 ) or ( guias 3 cash transfers ((6 cas) OR (_ cas)) ))*.