Perhaps you should try some spelling variations:
"improving social performance metrics." » "improving social performance contracts.", "improving social performance measures.", "improving social performance contract.", "improving school performance metrics.", "improving fiscal performance metrics.", "improving financial performance metrics."
"improving export performance review." » "improving export performance risk.", "improving export performance evidence.", "improving labor performance review.", "emerging export performance review.", "improving upper 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 social performance metrics.") or ("improving export performance review."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving social performance metrics.") OR ("improving export performance review.")).
• Removing quotes may allow a broader search: (( improving social performance metrics. ) or ( improving export performance review. )).
• Adding a wildcard symbol may retrieve word variants: (("improving social performance metrics.") or ("improving export performance review."))*.