Perhaps you should try some spelling variations:
"improving firms performance metrics." » "improving firms performance measures.", "improving firm performance metrics.", "improving firm performances metrics.", "improving funds performance metrics.", "improving farmers performance metrics.", "importing firms performance metrics.", "improving air performance metrics."
"improving lead performance risk." » "improving end performance risk.", "improving esd performance risk.", "improving reward performance risk.", "improving lead performance 2019.", "improving legal performance risk.", "improving land performance risk.", "improving eap performance risk."

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• Performing a fuzzy search may retrieve terms with similar spellings: (("improving firms performance metrics.") or ("improving lead performance risk."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving firms performance metrics.") OR ("improving lead performance risk.")).
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