Perhaps you should try some spelling variations:
"improving fiscal performance metrics." » "improving fiscal performance contracts.", "improving fiscal performance measures.", "improving fiscal performance contract.", "improving financial performance metrics.", "improving firm performance metrics.", "improving social performance metrics.", "improving rural performance metrics."
"improving human performance series." » "improving human performance reviews.", "improving human performance review.", "improving human performance targets.", "improving loan performance series.", "improving thermal performance series.", "improving company performance series.", "improving urban performance series.", "improving rural performance series."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("improving human performance series.") or ("improving fiscal performance metrics."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving human performance series.") OR ("improving fiscal performance metrics."))*.
• Removing quotes may allow a broader search: (( improving human performance series. ) or ( improving fiscal performance metrics. ))*.