Perhaps you should try some spelling variations:
formal transport » informal transport, rural transport, local transport
local transfers » social transfers, fiscal transfers, local transport
costs chapter » cost chapter, courts chapter, posets chapter
transfers de » transferts de, transfert de, transfers made
langues la » langues de, langues et, langues dans
vs formal » vs informal, its formal, _ formal
aguas vs » agens vs, aguas de, aguas do
la local » a local, via local, 3 local
de casos » de cas

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 la local transfers de casos ))~".
• Adding a wildcard symbol may retrieve word variants: (( aguas vs formal transport costs chapter ) OR ( langues la local transfers de casos ))*.