Perhaps you should try some spelling variations:
"improving federal performance contract." » "improving federal performance contracts.", "improving general performance contract.", "improving senegal performance contract.", "improving sectoral performance contract.", "improve federal performance contract.", "improving central performance contract.", "improving neural performance contract."
"improving rural performance targets." » "improving euract performance targets.", "improving larval performance targets.", "improving pupil 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 rural performance targets.") or ("improving federal performance contract."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving rural performance targets.") OR ("improving federal performance contract.")).
• Removing quotes may allow a broader search: (( improving rural performance targets. ) or ( improving federal performance contract. )).
• Adding a wildcard symbol may retrieve word variants: (("improving rural performance targets.") or ("improving federal performance contract."))*.