Perhaps you should try some spelling variations:
social transfers » fiscal transfers
transfers costs » transfer costs, transfer cost, transfers foster
transfers der » transfer der, transfert de, transfers bei
do informal » who informal, _ informal, 3 informal
costs chap » costs ch, costs chapter
langues et » langue et, algues et, langue en
et social » et sociales, 1 social, 11 social
aguas do » aguas de, aguas del
der caso » de caso, del caso, der 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 do informal transfers costs chap ) OR ( langues et social transfers der caso ))~.
• Adding a wildcard symbol may retrieve word variants: (( aguas do informal transfers costs chap ) or ( langues et social transfers der caso ))*.