Perhaps you should try some spelling variations:
"del pacientes con ever" » "de pacientes con ever", "del paciente con ever", "en pacientes con ever", "del pacientes con every", "del pacientes con ver", "del pacientes con over"
"best science vol ever" » "les sciences vol ever", "best science vol every", "best science vol ver", "best science vol over"
"new science food ever" » "new science mad ever", "les sciences food ever", "open science food ever", "how sciences food ever", "new science food every", "new science food ver", "new science food over"

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: "((\"best science vol ever\") OR (((\"del pacientes con ever\") OR (\"new science food ever\"))))~".
• Removing quotes may allow a broader search: (( best science vol ever ) OR ((( del pacientes con ever ) OR ( new science food ever ))))~.
• Adding a wildcard symbol may retrieve word variants: (("best science vol ever") OR ((("del pacientes con ever") OR ("new science food ever"))))*.