Perhaps you should try some spelling variations:
based transfer » based transfers, basin transfer, basin transfers
rsa transport » road transport, sea transport, rural transport
a transport » 3 transport, 4 transport, sea transport
value keys » values key
guias les » guide les, guias de
les based » les bases, aes based, ses based
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: (( value keys ((rsa transport) OR (a transport)) mode a ) OR ( guias les based transfer _ a ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( value keys ((rsa transport) OR (a transport)) mode a ) or ( guias les based transfer _ a ))~".
• Adding a wildcard symbol may retrieve word variants: (( value keys ((rsa transport) OR (a transport)) mode a ) or ( guias les based transfer _ a ))*.