Perhaps you should try some spelling variations:
during risk » using risk, during crises, during crisis
pei yang » wei yang, hui yang, pei yun
yang jin » yang jie, yang jun, ying jin
yang jui » yang di, yang xi, yang yi
a costs » a cost, 3 costs, 4 costs
yang mu » yang du, yang muxi, yang jun
judy » july

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

• Performing a fuzzy search may retrieve terms with similar spellings: pei yang jin ((a costs) or (do cash)) during risk ((yang mu) or (((yang jui) OR (yang judy)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: pei yang jin ((a costs) OR (do cash)) during risk ((yang mu) OR (((yang jui) OR (yang judy)))) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "pei yang jin ((a costs) or (do cash)) during risk ((yang mu) or (((yang jui) OR (yang judy)))) ;*".