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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("best science book ver") OR ("best science vol ver"))) OR ("del science book ver"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"best science book ver\") OR (\"best science vol ver\"))) OR (\"del science book ver\"))".
• Removing quotes may allow a broader search: (((( best science book ver ) OR ( best science vol ver ))) OR ( del science book ver )).
• Adding a wildcard symbol may retrieve word variants: (((("best science book ver") OR ("best science vol ver"))) OR ("del science book ver"))*.