Perhaps you should try some spelling variations:
"les sciences food ver" » "les science food ver", "les science from ver", "les sciences hors ver", "en sciences food ver", "life sciences food ver", "del science food ver"
"best science book ver" » "del science book ver", "new science book ver", "art science book ver", "best science food ver", "best science from ver", "best science vol ver", "best science book new"
"open science book ver" » "open science food ver", "open science from ver", "open science vol ver", "del science book ver", "en sciences book ver", "new science book ver", "open science book new"

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