Perhaps you should try some spelling variations:
"en sciences horst every" » "en sciences hors every", "_ sciences horst every", "open science horst every"
"les sciences horse every" » "les sciences hors every", "life sciences horse every", "del science horse every", "_ sciences horse every"
"dna science book every" » "dna science food every", "dna science from every", "dna science vol every", "data science book every", "del science book every", "a science book 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: "((\"dna science book every\") OR (((\"les sciences horse every\") OR (\"en sciences horst every\"))))~".
• Removing quotes may allow a broader search: (( dna science book every ) OR ((( les sciences horse every ) OR ( en sciences horst every ))))~.
• Adding a wildcard symbol may retrieve word variants: (("dna science book every") OR ((("les sciences horse every") OR ("en sciences horst every"))))*.