Perhaps you should try some spelling variations:
"en sciences book over" » "en science book over", "en science food over", "en sciences hors over", "les sciences book over", "_ sciences book over", "open science book over", "en sciences book ver"
"del paciente from heat" » "del paciente con heat", "del pacientes qom heat", "del science from heat", "del presente from heat", "del ambiente from heat"
"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 sciences 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 sciences book over\") OR (\"del paciente from heat\"))) OR (\"en seres from le\"))".
• Removing quotes may allow a broader search: (((( en sciences book over ) OR ( del paciente from heat ))) OR ( en seres from le )).
• Adding a wildcard symbol may retrieve word variants: (((("en sciences book over") OR ("del paciente from heat"))) OR ("en seres from le"))*.