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

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("world economy and financial surveys.") or ("world economic and financial services."))) or ("world economic and financial strength."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("world economy and financial surveys.") OR ("world economic and financial services."))) OR ("world economic and financial strength.")).
• Removing quotes may allow a broader search: (((( world economy and financial surveys. ) or ( world economic and financial services. ))) or ( world economic and financial strength. )).
• Adding a wildcard symbol may retrieve word variants: (((("world economy and financial surveys.") or ("world economic and financial services."))) or ("world economic and financial strength."))*.