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 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 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 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 systems.\") OR (\"World economic and financial system.\"))) or (\"world economic and financial statements.\"))*".
• Removing quotes may allow a broader search: (((( World economic and financial systems. ) OR ( World economic and financial system. ))) or ( world economic and financial statements. ))*.