Perhaps you should try some spelling variations:
"improving dataset performance evidence." » "improving market performance evidence.", "improving based performance evidence.", "improving past performance evidence.", "improving data performance evidence.", "improving asset performance evidence.", "improving disease performance evidence."
"improving port performance risk." » "improving port performance 2019.", "improving export performance risk.", "improving court performance risk.", "improving plant performance risk.", "improving post performance risk.", "improving poor 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 port performance risk.") or ("improving dataset performance evidence."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving port performance risk.") OR ("improving dataset performance evidence.")).
• Removing quotes may allow a broader search: (( improving port performance risk. ) or ( improving dataset performance evidence. )).
• Adding a wildcard symbol may retrieve word variants: (("improving port performance risk.") or ("improving dataset performance evidence."))*.