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