Perhaps you should try some spelling variations:
social transfers » fiscal transfers
formal transfer » informal transfers, social transfer, fiscal transfer
transfer costs » transport costs, transfer amounts
transfers de » transferts de, transfert de, transfers made
costs chap » costs ch, costs chapter
langues la » langues de, langues et, langues dans
vs formal » vs informal, its formal, _ formal
la social » a social, usa social, via social
aguas vs » agens vs, aguas de, aguas do
de caso » de casos, de cas, de castro

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 transfer costs chap ) OR ( langues la social transfers de caso ))~.
• Adding a wildcard symbol may retrieve word variants: (( aguas vs formal transfer costs chap ) or ( langues la social transfers de caso ))*.