Perhaps you should try some spelling variations:
"improving overall performance risks." » "improving average performance risks.", "improving thermal performance risks.", "improving governance performance risks.", "improving coverage performance risks.", "improving rural performance risks.", "improving poverty performance risks.", "improving overall performance issues.", "improving overall performance based.", "improving overall performance size.", "improving overall performance sizes.", "improving overall performance baseds.", "improving overall performance _s."
"improving urban performance risk." » "improving bank performance risk.", "improving loan performance risk.", "improving can performance risk.", "improving urban performance size.", "improving urban performance based.", "improving urban performance _."

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

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