Perhaps you should try some spelling variations:
"world economy and financial strengthen." » "world economy and financial strength.", "world economy and financial stresses."
"world economic and financial surveys." » "world economic and financial stress.", "world economic and financial services.", "world economic and financial service."
"world economy and financial systems." » "world economy and financial system.", "world economy 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 systems.") or ("world economy and financial distress."))) or ("world economy and financial strengthen."))))~.
• 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 distress."))) OR ("world economy and financial strengthen.")))).
• Removing quotes may allow a broader search: (( world economic and financial surveys. ) or ((((( world economy and financial systems. ) or ( world economy and financial distress. ))) or ( world economy and financial strengthen. )))).
• Adding a wildcard symbol may retrieve word variants: (("world economic and financial surveys.") or ((((("world economy and financial systems.") or ("world economy and financial distress."))) or ("world economy and financial strengthen."))))*.