Perhaps you should try some spelling variations:
"improving urban performance risks." » "improving bank performance risks.", "improving loan performance risks.", "improving can performance risks.", "improving urban performance issues.", "improving urban performance based.", "improving urban performance size.", "improving urban performance sizes.", "improving urban performance baseds.", "improving urban performance _s."
"improving land performance risk." » "improving plant performance risk.", "improving bank performance risk.", "improving loan performance risk.", "improving land performance size.", "improving land performance based.", "improving land performance _.", "improved land 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: (("improving urban performance risks.") or ("improving land performance risk."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving urban performance risks.") OR ("improving land performance risk.")).
• Removing quotes may allow a broader search: (( improving urban performance risks. ) or ( improving land performance risk. )).
• Adding a wildcard symbol may retrieve word variants: (("improving urban performance risks.") or ("improving land performance risk."))*.