Perhaps you should try some spelling variations:
"del paciente from heat" » "del paciente con heat", "del pacientes qom heat", "del science from heat", "del presente from heat", "del ambiente from heat"
"open science book over" » "del science book over", "en sciences book over", "new science book over", "open science food over", "open science from over", "open science vol over", "open science book ver"
"en scenes from le" » "en sciences from le", "en bienes from le", "en seres from le", "en scenes from her", "en scenes from new"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("open science book over") OR ("del paciente from heat"))) OR ("en scenes from le"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"open science book over\") OR (\"del paciente from heat\"))) OR (\"en scenes from le\"))".
• Removing quotes may allow a broader search: (((( open science book over ) OR ( del paciente from heat ))) OR ( en scenes from le )).
• Adding a wildcard symbol may retrieve word variants: (((("open science book over") OR ("del paciente from heat"))) OR ("en scenes from le"))*.