Perhaps you should try some spelling variations:
transfer schemes » transfer scheme, transfer systems
schemes versus » schemes vss, schools versus, smes versus
data transfer » cash transfer, heat transfer
values de » values add, values _, values a
de data » e data, wide data, de datos
do a » do _, dr a, d a
do i » do _

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: (( values de data transfer schemes versus ) OR ( vagues ((do a) OR (do i)) transforming _ macao ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( values de data transfer schemes versus ) or ( vagues ((do a) OR (do i)) transforming _ macao ))~".
• Adding a wildcard symbol may retrieve word variants: (( values de data transfer schemes versus ) or ( vagues ((do a) OR (do i)) transforming _ macao ))*.