Perhaps you should try some spelling variations:
transform pairs » transform haar, transform cities, transform crisis
data transfer » cash transfer
can transform » _ transform
aguas del » aguas de, aguas do
guias 1 » guias de
del can » model can, del cante, del cine
pairs 4 » pairs _, papers 4
iot 3 » iota 3, iot _, iot 1

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: (( guias 1 ((data transfer) OR (heat transfer)) iot 3 ) OR ( aguas del can transform pairs 4 ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( guias 1 ((data transfer) OR (heat transfer)) iot 3 ) or ( aguas del can transform pairs 4 ))~".
• Adding a wildcard symbol may retrieve word variants: (( guias 1 ((data transfer) OR (heat transfer)) iot 3 ) or ( aguas del can transform pairs 4 ))*.