Perhaps you should try some spelling variations:
formal transport » informal transport, rural transport, local transport
transport courts » transport costs, transport tourism, transport cost
social transfers » fiscal transfers
courts chapter » court chapter, courses chapter, course chapter
andes africa » changes africa, invades africa, bank's africa
transfers et » transferts et, transfert et, transfers bei
vs formal » vs informal, its formal, _ formal
agens vs » agens i, genes vs
et caso » el caso, del caso, en casos

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: (( agens vs formal transport courts chapter ) OR ( andes africa social transfers et caso ))~.
• Adding a wildcard symbol may retrieve word variants: (( agens vs formal transport courts chapter ) or ( andes africa social transfers et caso ))*.