Perhaps you should try some spelling variations:
bases transfer » based transfer, bayes transfer, based transfers
transport code » transport mode, transport modes, transport model
de africa's » did africa's, _ africa's, 2 africa's
guias les » guide les, guias de
les bases » les causes
code a » code _, code 2

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: (( vue de africa's transport code a ) OR ( guias les bases transfer _ a ))~.
• Adding a wildcard symbol may retrieve word variants: (( vue de africa's transport code a ) or ( guias les bases transfer _ a ))*.