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 fund performance measures." » "improving firm performance measures.", "improving bank performance measures.", "improving _ performance measures.", "improving land performance measures.", "improving food performance measures.", "improving feed performance measures."

Try widening your search to All Fields.

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