Perhaps you should try some spelling variations:
"improving land performance metrics." » "improving land performance contracts.", "improving land performance measures.", "improving land performance contract.", "improving plant performance metrics.", "improving bank performance metrics.", "improving loan performance metrics.", "improved land performance metrics."
"improving social performance series." » "improving school performance series.", "improving fiscal performance series.", "improving financial performance series.", "improving social performance reviews.", "improving social performance review.", "improving social 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 land performance metrics.") or ("improving social performance series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving land performance metrics.") OR ("improving social performance series."))*.
• Removing quotes may allow a broader search: (( improving land performance metrics. ) or ( improving social performance series. ))*.