Perhaps you should try some spelling variations:
"improving human performance reviews." » "improving human performance reports.", "improving human performance risks.", "improving human performance results.", "improving human performance evidences.", "improving thermal performance reviews.", "improving chain performance reviews."
"Improving loan performance review." » "Improving loan performance risk.", "Improving loan performance evidence."
improving loan » improving local, improving land, improving lead

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