Perhaps you should try some spelling variations:
"del science food over" » "del science vol over", "data science food over", "del paciente food over", "les sciences food over", "del science food ver"
"new science book ever" » "new science vol ever", "les sciences book ever", "open science book ever", "how sciences book ever", "new science book every", "new science book ver", "new science book even"
"dna science mad over" » "data science mad over", "dna sequence mad over", "dna sciences make over", "dna science mad 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: "((\"new science book ever\") OR (((\"dna science mad over\") OR (\"del science food over\"))))~".
• Removing quotes may allow a broader search: (( new science book ever ) OR ((( dna science mad over ) OR ( del science food over ))))~.
• Adding a wildcard symbol may retrieve word variants: (("new science book ever") OR ((("dna science mad over") OR ("del science food over"))))*.