Perhaps you should try some spelling variations:
"del sciences horst ever" » "del sciences hors ever", "en sciences horst ever", "les sciences horst ever", "et sciences horst ever", "del pacientes horst ever"
"en science book ever" » "en science food ever", "en science from ever", "en sciences book ever", "open science book ever", "new science book ever"
"del science vol ever" » "del paciente vol ever", "del science food ever", "del science from ever"

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: "((\"en science book ever\") OR (((\"del sciences horst ever\") OR (\"del science vol ever\"))))~".
• Removing quotes may allow a broader search: (( en science book ever ) OR ((( del sciences horst ever ) OR ( del science vol ever ))))~.
• Adding a wildcard symbol may retrieve word variants: (("en science book ever") OR ((("del sciences horst ever") OR ("del science vol ever"))))*.