Perhaps you should try some spelling variations:
"improving rural performance metrics." » "improving rural performance contracts.", "improving rural performance measures.", "improving rural performance contract.", "improving pupil performance metrics.", "improving thermal performance metrics.", "improving overall performance metrics.", "improving urban performance metrics."
"improving social performance targets." » "improving school performance targets.", "improving fiscal performance targets.", "improving financial performance targets."

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

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