Perhaps you should try some spelling variations:
"improving social performance report." » "improving school performance report.", "improving fiscal performance report.", "improving financial performance report.", "improving social performance reports.", "improving social performance reporting.", "improving social performance review."
"improving rural performance series." » "improving rural performance studies.", "improving rural performance size.", "improving euract performance series.", "improving larval performance series.", "improving pupil 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 rural performance series.") or ("improving social performance report."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving rural performance series.") OR ("improving social performance report.")).
• Removing quotes may allow a broader search: (( improving rural performance series. ) or ( improving social performance report. )).
• Adding a wildcard symbol may retrieve word variants: (("improving rural performance series.") or ("improving social performance report."))*.