Perhaps you should try some spelling variations:
formal transport » informal transport, rural transport, local transport
costs chapter » cost chapter, courts chapter, posets chapter
langues rica » langues la
transfers en » transfers ein, transfers end, transfers und
rica fiscal » radical fiscal, local fiscal, china fiscal
vs formal » vs informal, its formal, _ formal
aguas vs » agens vs, aguas de, aguas do
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 vs formal transport costs chapter ) OR ( langues rica fiscal transfers en casos ))~.
• Adding a wildcard symbol may retrieve word variants: (( aguas vs formal transport costs chapter ) or ( langues rica fiscal transfers en casos ))*.