Perhaps you should try some spelling variations:
"improving fiscal performance metrics." » "improving fiscal performance contracts.", "improving fiscal performance measures.", "improving fiscal performance contract.", "improving financial performance metrics.", "improving firm performance metrics.", "improving social performance metrics.", "improving rural performance metrics."
"improving city performance evidence." » "improving firm performance evidence.", "improving high performance evidence.", "improving key performance evidence.", "improving its performance evidence.", "improving equity performance evidence.", "improving birth performance evidence."

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

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