Perhaps you should try some spelling variations:
"improving land performance series." » "improving land performance metrics.", "improving land performance reviews.", "improving land performance review.", "improving plant performance series.", "improving bank performance series.", "improving fund performance series.", "improved land performance series."
"improving loan performance series." » "improving loan performance metrics.", "improving loan performance reviews.", "improving loan performance review.", "improving poor performance series.", "improving bank performance series.", "improving _ performance series.", "improving local performance series.", "improving road performance series.", "improving lead performance series."

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 series.") OR ("improving loan performance series."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"improving land performance series.\") OR (\"improving loan performance series.\"))".
• Removing quotes may allow a broader search: (( improving land performance series. ) OR ( improving loan performance series. )).
• Adding a wildcard symbol may retrieve word variants: (("improving land performance series.") OR ("improving loan performance series."))*.