Perhaps you should try some spelling variations:
"improving contract performance measures." » "improving country performance measures.", "improving court performance measures.", "improving economic performance measures.", "improve contract performance measures.", "improving central performance measures.", "improve contrast performance measures."
"improving bank performance review." » "improving bank performance risk.", "improving bank performance evidence.", "improving urban performance review.", "improving basic performance review.", "improving brain 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 contract performance measures.") or ("improving bank performance review."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving contract performance measures.") OR ("improving bank performance review.")).
• Removing quotes may allow a broader search: (( improving contract performance measures. ) or ( improving bank performance review. )).
• Adding a wildcard symbol may retrieve word variants: (("improving contract performance measures.") or ("improving bank performance review."))*.