Perhaps you should try some spelling variations:
"improving contract performance metrics." » "improving country performance metrics.", "improving court performance metrics.", "improving corporate performance metrics.", "improving contract performance contracts.", "improving contract performance measures.", "improving contract performance contract.", "improve contract performance metrics.", "improving central performance metrics.", "improving coverage performance metrics."
"improving based performance reports." » "improving based performance measures.", "improving bank performance reports.", "improving care performance reports.", "improving board performance reports.", "improving basic performance reports.", "improving shared performance reports.", "improving water performance reports."

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 metrics.") or ("improving based performance reports."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving contract performance metrics.") OR ("improving based performance reports."))*.
• Removing quotes may allow a broader search: (( improving contract performance metrics. ) or ( improving based performance reports. ))*.