Perhaps you should try some spelling variations:
transform primer » transform order, transform power, transform fourier
masse transform » make transform, mass transfer, cosine transform
transform fairs » transform pairs, transform family, transform haar
3 leader » 3 leaders, _ leader
a leader » _ leader
primer 3 » primer _, primes 3, primers _
guias de » guia de, guide de, aguas de
de masse » de mise
fairs a » fairs _, fair a, 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 ((3 leader) OR (a leader)) transform primer 3 ) OR ( guias de masse transform fairs a ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( guias ((3 leader) OR (a leader)) transform primer 3 ) or ( guias de masse transform fairs a ))~".
• Adding a wildcard symbol may retrieve word variants: (( guias ((3 leader) OR (a leader)) transform primer 3 ) or ( guias de masse transform fairs a ))*.