Perhaps you should try some spelling variations:
"improving country performance review." » "improving country performance risk.", "improving country performance evidence.", "improving voluntary performance review.", "importing country performance review.", "improving community performance review."
"improving poor performance targets." » "improving sector performance targets.", "improving power performance targets.", "improving food performance targets.", "improving peer performance targets."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("improving country performance review.") or ("improving poor performance targets."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving country performance review.") OR ("improving poor performance targets.")).
• Removing quotes may allow a broader search: (( improving country performance review. ) or ( improving poor performance targets. )).
• Adding a wildcard symbol may retrieve word variants: (("improving country performance review.") or ("improving poor performance targets."))*.