Perhaps you should try some spelling variations:
"open science book ever" » "new science book ever", "open science food ever", "open science from ever", "open science vol ever"
"del science book ever" » "del science food ever", "del science from ever", "del science vol ever", "del paciente book ever"
"en sciences hors over" » "les sciences hors over", "_ sciences hors over", "en sciences horas over", "en sciences horst over", "en sciences hours over", "en sciences hors ver"

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 ever") OR ("del science book ever"))) OR ("en sciences hors over"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"open science book ever\") OR (\"del science book ever\"))) OR (\"en sciences hors over\"))".
• Removing quotes may allow a broader search: (((( open science book ever ) OR ( del science book ever ))) OR ( en sciences hors over )).
• Adding a wildcard symbol may retrieve word variants: (((("open science book ever") OR ("del science book ever"))) OR ("en sciences hors over"))*.