Perhaps you should try some spelling variations:
based transfer » based transfers, basin transfer, basin transfers
transport mode » transport modes
sea transport » road transport, bus transport
vague key » value keys, sage key, vague de
guias les » guide les, guias de
les based » les bases, aes based, ses based
key sea » key step
mode a » mode ad, mode _, code 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: (( vague key sea transport mode a ) OR ( guias les based transfer _ a ))~.
• Adding a wildcard symbol may retrieve word variants: (( vague key sea transport mode a ) or ( guias les based transfer _ a ))*.