Perhaps you should try some spelling variations:
"world economic and financial stress." » "world economic and financial distress.", "world economic and financial access.", "world economic and financial strength."
"world economic and financial systems." » "world economic and financial sectors."
"world economic and financial system." » "world economic and financial sector."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("world economic and financial stress.") or ((((("world economic and financial systems.") or ("world economic and financial system."))) or ((("world economic and financial statements.") or ("world economy and financial management."))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("world economic and financial stress.") OR ((((("world economic and financial systems.") OR ("world economic and financial system."))) OR ((("world economic and financial statements.") OR ("world economy and financial management.")))))).
• Removing quotes may allow a broader search: (( world economic and financial stress. ) or ((((( world economic and financial systems. ) or ( world economic and financial system. ))) or ((( world economic and financial statements. ) or ( world economy and financial management. )))))).
• Adding a wildcard symbol may retrieve word variants: (("world economic and financial stress.") or ((((("world economic and financial systems.") or ("world economic and financial system."))) or ((("world economic and financial statements.") or ("world economy and financial management."))))))*.