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"
"en science book over" » "en science food over", "en science from over", "en science vol over", "en sciences book over", "open science book over", "del science book over", "en science book ver"
"en seres from le" » "en scenes from le", "en laseres from le", "en saberes from le", "en serie from le", "en seres from her", "en seres 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: (((("en science book over") OR ("del paciente from heat"))) OR ("en seres from le"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"en science book over\") OR (\"del paciente from heat\"))) OR (\"en seres from le\"))".
• Removing quotes may allow a broader search: (((( en science book over ) OR ( del paciente from heat ))) OR ( en seres from le )).
• Adding a wildcard symbol may retrieve word variants: (((("en science book over") OR ("del paciente from heat"))) OR ("en seres from le"))*.