Perhaps you should try some spelling variations:
"del science food ver" » "del science from ver", "del science mad ver", "del science mind ver"
"del paciente con new" » "del presente con new", "del ambiente con new", "del pacientes con new", "del paciente en new", "del pacientes en new"
"new science book over" » "new science from over", "new science vol over", "les sciences book over", "open science book over"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("del science food ver") OR ("del paciente con new"))) OR ("new science book over"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"del science food ver\") OR (\"del paciente con new\"))) OR (\"new science book over\"))*".
• Removing quotes may allow a broader search: (((( del science food ver ) OR ( del paciente con new ))) OR ( new science book over ))*.