Perhaps you should try some spelling variations:
"improving utility performance risk." » "improving quality performance risk.", "improve utility performance risk.", "improving equity performance risk.", "improving utility performance 2019."
"improving asset performance evidence." » "improving dataset performance evidence.", "improving market performance evidence.", "improving affect performance evidence.", "improving adult performance evidence.", "improving audit performance evidence.", "improving fast performance evidence."

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

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