Perhaps you should try some spelling variations:
transport signal » transform signal, transport design, transport annual
based transfer » based transfers, basin transfer, basin transfers
sea transport » road transport, bus transport
transfer 6 » transfer _, transfer 3, transfer 4
signal _ » signals _
aus own » aus bonn
own sea » own ses, own seed, own real
guias 3 » guias de
3 based » 3 base, 3 basel, d based
6 case » 2 case

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: (( aus own sea transport signal _ ) OR ( guias 3 based transfer 6 case ))~.
• Adding a wildcard symbol may retrieve word variants: (( aus own sea transport signal _ ) or ( guias 3 based transfer 6 case ))*.