Perhaps you should try some spelling variations:
"improving maternal performance risk." » "improving materials performance risk.", "improving external performance risk.", "improving national performance risk.", "improve maternal performance risk.", "improving water performance risk.", "improving maternal performance 2019."
"improving loan performance reviews." » "improving loan performance review.", "improving loan performance reports.", "improving loan performance risks.", "improving local performance reviews.", "improving land performance reviews.", "improving lead performance reviews."

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

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