Perhaps you should try some spelling variations:
"improving rural performance review." » "improving rural performance risk.", "improving euract performance review.", "improving larval performance review.", "improving pupil performance review."
"improving level performance evidence." » "improving model performance evidence.", "improving revenue performance evidence.", "improving pupil performance evidence.", "improving legal performance evidence.", "improving lives performance evidence.", "improving local performance evidence."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("improving rural performance review.") or ("improving level performance evidence."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving rural performance review.") OR ("improving level performance evidence.")).
• Removing quotes may allow a broader search: (( improving rural performance review. ) or ( improving level performance evidence. )).
• Adding a wildcard symbol may retrieve word variants: (("improving rural performance review.") or ("improving level performance evidence."))*.