Perhaps you should try some spelling variations:
"improving central performance measures." » "improving control performance measures.", "improving general performance measures.", "improving contract performance measures.", "improving mental performance measures.", "improving federal performance measures.", "improving neural performance measures."
"improving loan performance review." » "improving loan performance risk.", "improving loan performance evidence.", "improving local performance review.", "improving land performance review.", "improving lead performance review."

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

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