Perhaps you should try some spelling variations:
idea transformed » a transformed, ideas transform, cities transformed
transformed a » transformed _, transformed 1, transformer 1
transfer beim » transfer bei, transfers bei, transfer axiom
guias key » guias de
key idea » key ideas, very idea, key item
a acao » a adocao
e cash » _ cash, a cash, 5 cash
4 cash » _ cash, 4 case, a cash
macao » macro, macau, cacao

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: (( guias key idea transformed a acao ) OR ( luis ((e cash) OR (4 cash)) transfer beim macao ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( guias key idea transformed a acao ) or ( luis ((e cash) OR (4 cash)) transfer beim macao ))~".
• Adding a wildcard symbol may retrieve word variants: (( guias key idea transformed a acao ) or ( luis ((e cash) OR (4 cash)) transfer beim macao ))*.