Perhaps you should try some spelling variations:
"best science from ver" » "les sciences from ver", "new science from ver", "art science from ver", "best science food ver", "best science vol ver", "best science from her", "best science from here", "best science from le"
"open science book ver" » "en sciences book ver", "new science book ver", "open science food ver", "open science vol ver", "open science book new"
"del science book ver" » "del science food ver", "del science vol ver", "del paciente book ver", "del 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 from ver\") OR (\"open science book ver\"))) OR (\"del science book ver\"))~".
• Removing quotes may allow a broader search: (((( best science from ver ) OR ( open science book ver ))) OR ( del science book ver ))~.
• Adding a wildcard symbol may retrieve word variants: (((("best science from ver") OR ("open science book ver"))) OR ("del science book ver"))*.