Perhaps you should try some spelling variations:
transfer costs » transport costs, transfer amounts
data transfer » cash transfer, heat transfer
case transfer » cash transfer, cast transfer, cash transfers
den transfer » gene transfer, heat transfer, land transfer
costs case » costs cash
4 martin » c martin, f martin, g martin
luis a » luis f, luis c

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: (( luis a ((den transfer) OR (data transfer)) 4 martin ) OR ( luis a case transfer costs case ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( luis a ((den transfer) OR (data transfer)) 4 martin ) or ( luis a case transfer costs case ))~".
• Adding a wildcard symbol may retrieve word variants: (( luis a ((den transfer) OR (data transfer)) 4 martin ) or ( luis a case transfer costs case ))*.