Perhaps you should try some spelling variations:
"del paciente book over" » "del paciente con over", "del science book over", "del presente book over"
"les sciences food over" » "les science food over", "les science book over", "les science from over", "en sciences food over", "life sciences food over", "del science food over"
"les sciences food ver" » "les science food ver", "les science book ver", "les science from ver", "en sciences food ver", "life sciences food ver", "del science food ver"

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

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