Perhaps you should try some spelling variations:
"world economic and financial statements." » "world economic and financial management.", "world economy and financial statements."
"world economic and financial service." » "world economic and financial services.", "world economy and financial service."
"world economic and financial systems." » "world economic and financial sectors.", "world economy and financial systems."
"world economic and financial system." » "world economic and financial sector.", "world economy and financial system."

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 service.") or ((((("world economic and financial systems.") OR ("world economic and financial system."))) or ("world economic and financial statements."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("world economic and financial service.") OR ((((("world economic and financial systems.") OR ("world economic and financial system."))) OR ("world economic and financial statements.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"world economic and financial service.\") or (((((\"world economic and financial systems.\") OR (\"world economic and financial system.\"))) or (\"world economic and financial statements.\"))))".
• Removing quotes may allow a broader search: (( world economic and financial service. ) or ((((( world economic and financial systems. ) OR ( world economic and financial system. ))) or ( world economic and financial statements. )))).
• Adding a wildcard symbol may retrieve word variants: (("world economic and financial service.") or ((((("world economic and financial systems.") OR ("world economic and financial system."))) or ("world economic and financial statements."))))*.