Perhaps you should try some spelling variations:
formal transfer » informal transfers, fiscal transfer, fiscal transfers
social transfer » social transfers
transfer costs » transport costs, transfer amounts
costs chapter » cost chapter, courts chapter, posets chapter
langues asia » changes asia, langues la, langues sur
transfer der » transfer fees, transfer _
asia social » basic social, africa social, arabia social
vs formal » vs informal, its formal, _ formal
aguas vs » agens vs, aguas de, aguas do
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 vs formal transfer costs chapter ) OR ( langues asia social transfer der caso ))~.
• Adding a wildcard symbol may retrieve word variants: (( aguas vs formal transfer costs chapter ) or ( langues asia social transfer der caso ))*.