Perhaps you should try some spelling variations:
"improving power performance contracts." » "improving poor performance contracts.", "improving worker performance contracts.", "improving core performance contracts.", "improving peer performance contracts.", "improving sewer performance contracts."
"improving trade performance reports." » "improving care performance reports.", "improving tax performance reports.", "improving teacher performance reports.", "improving trade performance report."

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

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