Perhaps you should try some spelling variations:
"les sciences book ver" » "les science book ver", "en sciences book ver", "life sciences book ver", "del science book ver", "les sciences book new"
"open science food ver" » "del science food ver", "en sciences food ver", "new science food ver", "open science book ver", "open science from ver", "open science mad ver"
"et sciences hors ver" » "en sciences hors ver", "_ sciences hors ver", "how sciences hors ver", "et sciences horas ver", "et sciences horst ver", "et sciences hours ver"

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: "((((\"et sciences hors ver\") OR (\"open science food ver\"))) OR (\"les sciences book ver\"))~".
• Removing quotes may allow a broader search: (((( et sciences hors ver ) OR ( open science food ver ))) OR ( les sciences book ver ))~.
• Adding a wildcard symbol may retrieve word variants: (((("et sciences hors ver") OR ("open science food ver"))) OR ("les sciences book ver"))*.