Perhaps you should try some spelling variations:
transport signal » transform signal, transport design, transport annual
sea transport » road transport, bus transport
transfers 6 » transfers 3, transfers 2, transfers 7
signal 3 » signals 3, signal _, signal 4
own sea » own ses, own seed, own real
guias 3 » guias de
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 3 ) OR ( guias 3 case ((transfers 6) OR (transfers _)) cas ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aguas own sea transport signal 3 ) or ( guias 3 case ((transfers 6) OR (transfers _)) cas ))~".
• Adding a wildcard symbol may retrieve word variants: (( aguas own sea transport signal 3 ) or ( guias 3 case ((transfers 6) OR (transfers _)) cas ))*.