Perhaps you should try some spelling variations:
"global environmental performance risks." » "global environment performance risks.", "global environmental performance risk."
"global investment financing sources." » "global investment banking sources.", "global government financing sources.", "global investment planning sources.", "social investment financing sources.", "global investment financial resources.", "global investment funding sources."

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