Perhaps you should try some spelling variations:
"improving urban performance reviews." » "improving urban performance review.", "improving urban performance reports.", "improving urban performance risks.", "improving bank performance reviews.", "improving loan performance reviews.", "improving can performance reviews."
"improving city performance metrics." » "improving city performance contracts.", "improving city performance measures.", "improving city performance contract.", "improving firm performance metrics.", "improving high performance metrics.", "improving key performance metrics.", "improving its performance metrics.", "improving equity performance metrics.", "improving birth performance metrics."

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