Perhaps you should try some spelling variations:
transform primer » transform order, transform power, transform fourier
masse transform » make transform, mass transfer, cosine transform
transform pairs » transform haar, transform cities, transform crisis
data transform » data transforms, data transfer, data transfers
primer a » primer _, primers _, printer a
guide de » guide _, guide a, guide 1
de masse » de mise
pairs 3 » pairs _, pairs 4, fairs 3

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 _ data transform primer a ) OR ( guide de masse transform pairs 3 ))~.
• Adding a wildcard symbol may retrieve word variants: (( guias _ data transform primer a ) or ( guide de masse transform pairs 3 ))*.