Perhaps you should try some spelling variations:
"life sciences horst over" » "life sciences hors over"
"best science book over" » "del science book over", "les sciences book over", "new science book over", "best science food over", "best science from over", "best science vol over"
"best science book ver" » "del science book ver", "les sciences book ver", "new science book ver", "best science food ver", "best science from ver", "best science vol ver", "best science book new"

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: "((((\"best science book over\") OR (\"best science book ver\"))) OR (\"life sciences horst over\"))~".
• Removing quotes may allow a broader search: (((( best science book over ) OR ( best science book ver ))) OR ( life sciences horst over ))~.
• Adding a wildcard symbol may retrieve word variants: (((("best science book over") OR ("best science book ver"))) OR ("life sciences horst over"))*.