Perhaps you should try some spelling variations:
transformation der » transformation _
transfer schemes » transfer scheme, transfer systems
peer transfer » der transfer, ee transfer, steuer transfer
schemes one » schemes some, schema one, schemes use
der acao » de acao, der aal, der acta
agua et » agua e
et die » etat die

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: (( agua _ peer transfer schemes one ) OR ( agua et die transformation der acao ))~.
• Adding a wildcard symbol may retrieve word variants: (( agua _ peer transfer schemes one ) or ( agua et die transformation der acao ))*.