Perhaps you should try some spelling variations:
"improving rural performance targets." » "improving pupil performance targets.", "improving thermal performance targets.", "improving overall performance targets.", "improving urban performance targets.", "improving social performance targets."
"improving rural performance measures." » "improving pupil performance measures.", "improving thermal performance measures.", "improving overall performance measures.", "improving urban performance measures.", "improving social performance measures."

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