Perhaps you should try some spelling variations:
"del sciences hours ever" » "del sciences hors ever", "les sciences hours ever", "et sciences hours ever", "_ sciences hours ever", "del pacientes hours ever"
"en sciences book ever" » "en science book ever", "en science food ever", "en sciences hors ever", "les sciences book ever", "_ sciences book ever", "open science book ever"
"del science hours ever" » "del sciences hors ever", "del science tourism ever", "del paciente hours ever"

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 ever") OR ((("del sciences hours ever") OR ("del science hours ever"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"en sciences book ever\") OR (((\"del sciences hours ever\") OR (\"del science hours ever\"))))*".
• Removing quotes may allow a broader search: (( en sciences book ever ) OR ((( del sciences hours ever ) OR ( del science hours ever ))))*.