Perhaps you should try some spelling variations:
transform tvdft » transform test
transform fft » transform cote, transform test, transform _
mass transfer » cash transfer, basin transfer, mass transport
transfer 3 » transfer _, transfer 4, transfer a
areas co » areas coal, areas act, areas can
guide de » guide _, guide a, guide 1
de mass » de masse, de mais, de masa

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: (( areas co _ ((transform fft) OR (transform tvdft)) a ) OR ( guide de mass transfer 3 a ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( areas co _ ((transform fft) OR (transform tvdft)) a ) or ( guide de mass transfer 3 a ))~".
• Adding a wildcard symbol may retrieve word variants: (( areas co _ ((transform fft) OR (transform tvdft)) a ) or ( guide de mass transfer 3 a ))*.