Perhaps you should try some spelling variations:
"improving bank performance targets." » "improving market performance targets.", "improving _ performance targets.", "improving firm performance targets.", "improving land performance targets.", "improving urban performance targets.", "improving basic performance targets."
"improving air performance contracts." » "improving firm performance contracts.", "improving a performance contracts.", "improving ii performance contracts.", "improving water performance contracts.", "improving land performance contracts.", "improving _ performance contracts."

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

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