Perhaps you should try some spelling variations:
"world economy and financial stress." » "world economy and financial distress.", "world economy and financial access.", "world economy and financial strength."
"world economy and financial services." » "world economy and financial series."
"world economic and financial services." » "world economic and financial series."

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