Perhaps you should try some spelling variations:
transform primer » transform order, transform power, transform fourier
cosine transform » can transform, alone transform, could transform
transform pairs » transform haar, transform cities, transform crisis
haar transform » can transform, data transform, make transform
primer a » primer _, primers _, printer a
a cosine » a coin, a cone
guias 3 » guias de
guide a » guide _
pairs 3 » pairs _, pairs 4, fairs 3
3 haar » _ haar, a haar, 3 hazard

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 3 haar transform primer a ) OR ( guide a cosine transform pairs 3 ))~.
• Adding a wildcard symbol may retrieve word variants: (( guias 3 haar transform primer a ) or ( guide a cosine transform pairs 3 ))*.