Perhaps you should try some spelling variations:
formal transport » informal transport, rural transport, modal transport
local transport » road transport, rural transport
langages de » languages do, langage le, langues de
transport a » transport _, transport data
costs ch » costs cash, costs chap, costs _
de local » de locale, le local, use local
a cas » a case, a cash, a casa

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 _ formal transport costs ch ) OR ( langages de local transport a cas ))~.
• Adding a wildcard symbol may retrieve word variants: (( aguas _ formal transport costs ch ) or ( langages de local transport a cas ))*.