Perhaps you should try some spelling variations:
"improve contract performance measures." » "improve country performance measures.", "improve court performance measures.", "improve economic performance measures.", "improve contrast performance measures.", "improve content performance measures.", "improved control performance measures."
"improving funds performance risk." » "improving fund performance risk.", "improving human performance risk.", "improving business performance risk.", "improving funds performance 2019.", "improving food performance risk.", "improving feed performance risk.", "improving firms performance risk."

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

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