Perhaps you should try some spelling variations:
have transformed » has transformed, a transformed, law transformed
transfer schemes » transfer scheme, transfer systems
schemes versus » schemes vss, schools versus, smes versus
agua la » agudo la
la heat » lag heat, a heat
e have » we have, _ have, i have

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 la heat transfer schemes versus ) OR ( agua e have transformed _ (acao OR cao) ))~.
• Adding a wildcard symbol may retrieve word variants: (( agua la heat transfer schemes versus ) or ( agua e have transformed _ (acao or cao) ))*.