Perhaps you should try some spelling variations:
"del paciente book ever" » "del paciente con ever", "del presente book ever", "del ambiente book ever"
"best science book ever" » "del science book ever", "les sciences book ever", "new science book ever", "best science from ever", "best science vol ever"
"best science food ever" » "del science food ever", "les sciences food ever", "new science food ever", "best science from ever", "best science mad ever", "best science mind ever"

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 ever") OR ("best science food ever"))) OR ("del paciente book ever"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"best science book ever\") OR (\"best science food ever\"))) OR (\"del paciente book ever\"))".
• Removing quotes may allow a broader search: (((( best science book ever ) OR ( best science food ever ))) OR ( del paciente book ever )).
• Adding a wildcard symbol may retrieve word variants: (((("best science book ever") OR ("best science food ever"))) OR ("del paciente book ever"))*.