Perhaps you should try some spelling variations:
transform tvdft » transform fft, transform test
transfer 3 » transfer _, transfer 4, transfer a
areas two » areas co
de mass » de masse, de mais, ice mass
de masa » de maria, de masse, de macau
3 do » _ do, 3 d, 1 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 ( guias ((de mass) OR (de masa)) transfer 3 do ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( areas two lamperti transform tvdft a ) or ( guias ((de mass) OR (de masa)) transfer 3 do ))~".
• Adding a wildcard symbol may retrieve word variants: (( areas two lamperti transform tvdft a ) or ( guias ((de mass) OR (de masa)) transfer 3 do ))*.