Perhaps you should try some spelling variations:
"improving can performance reviews." » "improving can performance review.", "improving can performance reports.", "improving can performance risks.", "improving chain performance reviews.", "improving loan performance reviews.", "improving 2 performance reviews.", "improving care performance reviews.", "improving a performance reviews.", "improving co performance reviews."
"improving human performance audits." » "improving loan performance audits.", "improving thermal performance audits.", "improving chain performance audits."

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

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