Perhaps you should try some spelling variations:
"les sciences hours every" » "les sciences hors every", "en sciences hours every", "life sciences hours every", "del science hours every"
"les sciences horse every" » "les sciences hors every", "en sciences horse every", "life sciences horse every", "del science 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.

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