Perhaps you should try some spelling variations:
"improving fiscal performance reviews." » "improving fiscal performance review.", "improving fiscal performance reports.", "improving fiscal performance risks.", "improving financial performance reviews."
"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 fiscal performance reviews."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"improving rural performance series.\") OR (\"improving fiscal performance reviews.\"))".
• Removing quotes may allow a broader search: (( improving rural performance series. ) OR ( improving fiscal performance reviews. )).
• Adding a wildcard symbol may retrieve word variants: (("improving rural performance series.") OR ("improving fiscal performance reviews."))*.