Perhaps you should try some spelling variations:
"improving company performance contracts." » "improving country performance contracts.", "improve company performance contracts.", "improving compliance performance contracts.", "improving community performance contracts."
"improving social performance measures." » "improving school performance measures.", "improving fiscal performance measures.", "improving financial performance measures."

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• Performing a fuzzy search may retrieve terms with similar spellings: (("improving company performance contracts.") or ("improving social performance measures."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving company performance contracts.") OR ("improving social performance measures.")).
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