Perhaps you should try some spelling variations:
"world economic and financial surveys." » "world economic and financial stress.", "world economic and financial services.", "world economic and financial service."
"world economy and financial surveys." » "world economy and financial stress.", "world economy and financial services.", "world economy and financial service."
"world economic and financial systems." » "world economic and financial statements."

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