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", "en sciences book ver"
"open science a ever" » "del science a ever", "open science _ ever", "open science a never", "open science man ever"
"new science vol ever" » "del science vol ever", "les sciences vol ever", "new science book ever", "new science food ever", "new science from ever"

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

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