Perhaps you should try some spelling variations:
during risk » using risk, during crises, during crisis
risk during » risks during, risk using, crisis during
risk cong » risk coping, risk among, risk along
yang jui » yang judy, yang di
yang xi » yang di
yang yi » yang di
yan zi » yan zhi, yuan zi, ban zi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wing ((yan zi) OR (((((yang xi) OR (yang yi))) OR (yang jui)))) chain risk during risk cong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing ((yan zi) or (((((yang xi) OR (yang yi))) or (yang jui)))) chain risk during risk cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wing ((yan zi) or (((((yang xi) OR (yang yi))) or (yang jui)))) chain risk during risk cong shu ;*.