Perhaps you should try some spelling variations:
der transformation » die transformation, zur transformation, energy transformation
transformation 1 » transformation _, transformation a, transformation 3
guide de » guide _, guide a, guide 1
ten der » arten der, daten der, osten der
de cash » de cas, do cash, de caso
saga » sagan, sage, sara

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: (( saga ten der transformation 1 3 ) OR ( guide de cash transfers _ case ))~.
• Adding a wildcard symbol may retrieve word variants: (( saga ten der transformation 1 3 ) or ( guide de cash transfers _ case ))*.