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

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( areas two lamperti transform tvdft a ) or ( guias de mais transfer 3 ao ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( areas two lamperti transform tvdft a ) OR ( guias de mais transfer 3 ao ))*.