Perhaps you should try some spelling variations:
learners transform » leaders transform, changers transform, legendre transform
efl learners » all learners, _ learners
transfer a » transfer _, transfer 3, transfer 4
aguas efl » aguas del
ist mann » test mann, ist denn, ist ganz
ist dann » ist denn, ist das, ich dann
guias a » guias de
a macao » a macro, _ macao
a heat » a heart, _ heat, a head

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: (( aguas efl learners transform ((ist mann) OR (ist dann)) ) OR ( guias a heat transfer a macao ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aguas efl learners transform ((ist mann) OR (ist dann)) ) or ( guias a heat transfer a macao ))~".
• Adding a wildcard symbol may retrieve word variants: (( aguas efl learners transform ((ist mann) OR (ist dann)) ) or ( guias a heat transfer a macao ))*.