Perhaps you should try some spelling variations:
"improving poor performance contract." » "improving poor performance contracts.", "improving sector performance contract.", "improving _ performance contract.", "improving firm performance contract.", "improving power performance contract.", "improving food performance contract.", "improving indoor performance contract."
"improving export performance targets." » "improving labor performance targets.", "emerging export performance targets.", "improving upper 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 export performance targets.") or ("improving poor performance contract."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving export performance targets.") OR ("improving poor performance contract."))*.
• Removing quotes may allow a broader search: (( improving export performance targets. ) or ( improving poor performance contract. ))*.