Perhaps you should try some spelling variations:
informal transfer » informal transfers, formal transfer, informal transport
local transport » road transport, rural transport
transfer costs » transport costs, transfer amounts
transport data » transport demand
de informal » do informal, _ informal, 3 informal
langues act » langues et, langues dans
act local » lait local, act lokale, past local
aguas de » aguas del, aguas do, vagues de
data cas » data case, data can, data car

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: (( aguas de informal transfer costs _ ) OR ( langues act local transport data cas ))~.
• Adding a wildcard symbol may retrieve word variants: (( aguas de informal transfer costs _ ) or ( langues act local transport data cas ))*.