Perhaps you should try some spelling variations:
"improving urban performance review." » "improving urban performance risk.", "improving urban performance evidence.", "improving bank performance review.", "improving loan performance review.", "improving can performance review."
"improving pupil performance contracts." » "improving social performance contracts.", "improving fund performance contracts.", "improving judicial performance contracts.", "improving public performance contracts.", "improving supply performance contracts.", "improving rural performance contracts."

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