Perhaps you should try some spelling variations:
"global environmental performance evidence." » "global environment performance evidence.", "legal environment performance evidence."
"global environmental performance reports." » "global environment performance reports.", "legal environment performance reports.", "global environmental performance measures."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("global environmental performance evidence.") OR ("global environmental performance reports."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"global environmental performance evidence.\") OR (\"global environmental performance reports.\"))".
• Removing quotes may allow a broader search: (( global environmental performance evidence. ) OR ( global environmental performance reports. )).
• Adding a wildcard symbol may retrieve word variants: (("global environmental performance evidence.") OR ("global environmental performance reports."))*.