Perhaps you should try some spelling variations:
"improving urban performance measures." » "improving bank performance measures.", "improving loan performance measures.", "improving can performance measures."
"improving human performance risks." » "improving loan performance risks.", "improving thermal performance risks.", "improving company performance risks.", "improving human performance risk.", "improving human performance issues.", "improving human performance based.", "improving rural performance risks."

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