Perhaps you should try some spelling variations:
"improving land performance contract." » "improving land performance contracts.", "improving plant performance contract.", "improving bank performance contract.", "improving loan performance contract.", "improved land performance contract."
"improving can performance metrics." » "improving can performance contracts.", "improving can performance measures.", "improving bank performance metrics.", "improving loan performance metrics.", "improving care performance metrics.", "improving tax performance metrics.", "improving co performance metrics.", "improving urban performance metrics."

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

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