Perhaps you should try some spelling variations:
"improving based performance risk." » "improving board performance risk.", "improving fund performance risk.", "improving good performance risk.", "improving based performance 2019.", "improving basic performance risk.", "improving care performance risk.", "improving asset performance risk."
"improving port performance based." » "improving export performance based.", "improving court performance based.", "improving plant performance based.", "improving post performance based.", "improving poor performance based."

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

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