Perhaps you should try some spelling variations:
"world economic and financial surveys." » "world economic and financial stress.", "world economic and financial burden.", "world economic and financial studies."
"world economy and financial systems." » "world economy and financial system.", "world economy and financial statements."
"world economy and financial series." » "world economy and financial studies.", "world economy and financial stress.", "world economy and financial barriers."

Try widening your search to All Fields.

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