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

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