Perhaps you should try some spelling variations:
formal transport » informal transport, rural transport, modal transport
local transport » road transport, rural transport
costs chapter » cost chapter, courts chapter, posets chapter
transport en » transport et, transport can, transport _
langues la » langues de, langues et, langues dans
la local » a local, via local, 3 local
en casos » el caso, de casos, en cas

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 chapter ) OR ( langues la local transport en casos ))~.
• Adding a wildcard symbol may retrieve word variants: (( aguas _ formal transport costs chapter ) or ( langues la local transport en casos ))*.