Perhaps you should try some spelling variations:
"les sciences food vera" » "les science food vera", "les sciences hors vera", "en sciences food vera", "life sciences food vera", "_ sciences food vera", "les sciences food era", "les sciences food vega", "les sciences food ver"
"del science from every" » "del science food every", "del science vol every", "del paciente from every"
"open science book every" » "en sciences book every", "new science book every", "open science food every", "open science vol every"

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: "((((\"del science from every\") OR (\"open science book every\"))) OR (\"les sciences food vera\"))~".
• Removing quotes may allow a broader search: (((( del science from every ) OR ( open science book every ))) OR ( les sciences food vera ))~.
• Adding a wildcard symbol may retrieve word variants: (((("del science from every") OR ("open science book every"))) OR ("les sciences food vera"))*.