Perhaps you should try some spelling variations:
social transfer » social transfers
transfer costs » transport costs, transfer amounts
langues usa » langues la
its formal » ii formal, iii formal, rates formal
usa social » asia social, cuba social, a social
its forms » its focus, its foes
costs ch » costs cash, costs chap, costs _

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: (( aus ((its formal) OR (its forms)) transfer costs ch ) OR ( langues usa social transfer _ ca ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aus ((its formal) OR (its forms)) transfer costs ch ) or ( langues usa social transfer _ ca ))~".
• Adding a wildcard symbol may retrieve word variants: (( aus ((its formal) OR (its forms)) transfer costs ch ) or ( langues usa social transfer _ ca ))*.