Perhaps you should try some spelling variations:
"improving urban performance metrics." » "improving urban performance contracts.", "improving urban performance measures.", "improving urban performance contract.", "improving loan performance metrics.", "improving can performance metrics.", "improving a performance metrics."
"improving bank performance series." » "improving bank performance reviews.", "improving bank performance review.", "improving bank performance targets.", "improving market performance series.", "improving _ performance series.", "improving firm performance series.", "improving land performance series.", "improving basic performance series.", "improving air performance series."

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