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