Perhaps you should try some spelling variations:
"del science book ever" » "del science food ever", "del science from ever", "del science vol ever", "del paciente book ever"
"best science book every" » "best science food every", "best science from every", "best science vol every", "les sciences book every", "new science book every", "et sciences book every"
"art science book every" » "art science food every", "art science from every", "art science vol every", "wars science book every", "a science book every", "dairy science book every"

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: "((\"del science book ever\") OR (((\"best science book every\") OR (\"art science book every\"))))~".
• Removing quotes may allow a broader search: (( del science book ever ) OR ((( best science book every ) OR ( art science book every ))))~.
• Adding a wildcard symbol may retrieve word variants: (("del science book ever") OR ((("best science book every") OR ("art science book every"))))*.