Perhaps you should try some spelling variations:
oral transfers » formal transfers, local transfers, modal transfers
data transfer » cash transfer, heat transfer
transfer tax » transfer taxes, transfer _
vagues de » vague de, values de, langues de
new oral » new moral, knew moral, new rural
de data » e data, wide data, de datos

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: (( his new oral transfers _ acao ) OR ( vagues de data transfer tax cao ))~.
• Adding a wildcard symbol may retrieve word variants: (( his new oral transfers _ acao ) or ( vagues de data transfer tax cao ))*.