Perhaps you should try some spelling variations:
"total investment performance risk." » "total government performance risk.", "social investment performance risk.", "global investment performance risk.", "rural investment performance risk.", "total investment performance 2019."
"global environmental performance reports." » "global environment performance reports.", "global environmental performance report."

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

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