Perhaps you should try some spelling variations:
layered transform » lamperti transform, wavelet transform, leaders transform
mass transport » gas transport, mass transit, bus transport
two layered » two layer
transport a » transport _, transport data
areas two » areas co
guias de » guia de, guide de, aguas de
de mass » de masse, de mais, de masa
std a » ltd a, sad a, std _
atd a » add a, aid a, ahd a
a a » a la

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 layered transform ((std a) OR (atd a)) ) OR ( guias de mass transport a a ))~.
• Adding a wildcard symbol may retrieve word variants: (( areas two layered transform ((std a) or (atd a)) ) or ( guias de mass transport a a ))*.