Perhaps you should try some spelling variations:
transform tvdft » transform fft, transform test
mais transfer » mass transfer, gas transfer, mit transfer
transfer 4 » transfer _, transfer 3, transfer a
areas two » areas co
guide de » guide _, guide a, guide 1
de mais » des mais, die mais, de maio
4 ao » 4 aoi, 4 a, 4 do
lamperti » lampert, lamberti, lampietti

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 two lamperti transform tvdft a ) OR ( guide de mais transfer 4 ao ))~.
• Adding a wildcard symbol may retrieve word variants: (( areas two lamperti transform tvdft a ) or ( guide de mais transfer 4 ao ))*.