Perhaps you should try some spelling variations:
local transferts » local transfers, social transfers, local transport
formal transport » informal transport, rural transport, local transport
costs chapter » cost chapter, courts chapter, posets chapter
transferts et » transfert et, transferts de, transfert de
langues rica » langues la
rica local » africa local, rica social, via local
vs formal » vs informal, its formal, _ formal
aguas vs » agens vs, aguas de, aguas do
et caso » el caso, del caso, en casos

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aguas vs formal transport costs chapter ) OR ( langues rica local transferts et caso ))~".
• Adding a wildcard symbol may retrieve word variants: (( aguas vs formal transport costs chapter ) OR ( langues rica local transferts et caso ))*.