Perhaps you should try some spelling variations:
"improving rural performance metrics." » "improving rural performance measures.", "improving euract performance metrics.", "improving larval performance metrics.", "improving pupil performance metrics."
"improving civil performance targets." » "improving pupil performance targets.", "improving level performance targets.", "improving driving performance targets.", "improving civic performance targets.", "improving living performance targets.", "improving child performance targets."

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 civil performance targets.") or ("improving rural performance metrics."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving civil performance targets.") OR ("improving rural performance metrics.")).
• Removing quotes may allow a broader search: (( improving civil performance targets. ) or ( improving rural performance metrics. )).
• Adding a wildcard symbol may retrieve word variants: (("improving civil performance targets.") or ("improving rural performance metrics."))*.