Perhaps you should try some spelling variations:
"improving contract performance risk." » "improving country performance risk.", "improving court performance risk.", "improving economic performance risk.", "improve contract performance risk.", "improving central performance risk.", "improve contrast performance risk.", "improving contract performance 2019."
"improving loan performance studies." » "improving loan performance audits.", "improving loan performance audit.", "improving loan performance standards.", "improving local performance studies.", "improving land performance studies.", "improving lead performance studies."

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