Perhaps you should try some spelling variations:
"improving loan performance metrics." » "improving loan performance measures.", "improving local performance metrics.", "improving land performance metrics.", "improving lead performance metrics."
"improving firms performance series." » "improving firms performance studies.", "improving firms performance size.", "improving firm performance series.", "improving firm performances series.", "improving funds performance series.", "improving farmers performance series.", "importing firms performance series.", "improving air performance series."

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

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