Perhaps you should try some spelling variations:
transfer schemes » transfer scheme, transfer systems
schemes prior » schemes pro, schemes fair
transformed 1 » transformed _, transformer 1, transformed a
agua et » agua e
1 macao » _ macao, 1 macro, 2.1 macao
agua 2 » agua e, agua _, agua y
2 heat » _ heat, a heat, 1 heat

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( agua 2 heat transfer schemes prior ) or ( agua et _ transformed 1 macao ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( agua 2 heat transfer schemes prior ) OR ( agua et _ transformed 1 macao ))*.