Perhaps you should try some spelling variations:
"improving firm performance metrics." » "improving firm performance contracts.", "improving firm performance measures.", "improving firm performance contract.", "improving _ performance metrics.", "improving firms performance metrics.", "improving air performance metrics.", "improving birth performance metrics."
"improving loan performance risk." » "improving poor performance risk.", "improving bank performance risk.", "improving _ performance risk.", "improving loan performance size.", "improving loan performance based.", "improving loan performance _.", "improving local performance risk.", "improving land performance risk.", "improving road performance risk."

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