Perhaps you should try some spelling variations:
sciences book » science book, sciences hors
les sciences » en sciences, life sciences, del science
open science » del science, en sciences, new science
science food » science book, science from, science mad
evera » eera, evega, ever
vera » era, vega, ver

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( les sciences book (evera OR evera) ) OR ( open science food vera ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( les sciences book (evera OR evera) ) OR ( open science food vera ))".
• Adding a wildcard symbol may retrieve word variants: (( les sciences book (evera OR evera) ) OR ( open science food vera ))*.