Perhaps you should try some spelling variations:
"improving land performance results." » "improving land performance reports.", "improving land performance measures.", "improving land performance report.", "improving plant performance results.", "improving fund performance results.", "improving und performance results."
"improving good performance risks." » "improving good performance risk.", "improving fund performance risks.", "improving court performance risks.", "improving 2 performance risks.", "improving food performance risks.", "improving blood performance risks.", "improve good performance risks."

Try widening your search to All Fields.

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 results.") or ("improving good performance risks."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving land performance results.") OR ("improving good performance risks.")).
• Removing quotes may allow a broader search: (( improving land performance results. ) or ( improving good performance risks. )).
• Adding a wildcard symbol may retrieve word variants: (("improving land performance results.") or ("improving good performance risks."))*.