Perhaps you should try some spelling variations:
"improving contract performance review." » "improving country performance review.", "improving court performance review.", "improving economic performance review.", "improve contract performance review.", "improving central performance review.", "improve contrast performance review.", "improving contract performance risk."
"improving bank performance evidence." » "improving urban performance evidence.", "improving basic performance evidence.", "improving brain performance evidence."

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

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