Perhaps you should try some spelling variations:
risk during » risks during, risk using, crisis during
during risk » using risk, during crises, during crisis
can risk » chain risk
yang xi » yang di, yang yi, yang jui
yang mu » yang du, yang muxi, yang jui
tan shu » than she
yan yi » yang yi, tan yi, yin yi
yan zi » yan zhi, yuan zi, ban zi

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing ((((yan yi) OR (yan zi))) or (yang xi)) can risk during risk ((yang mu) or (tan shu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing ((((yan yi) OR (yan zi))) OR (yang xi)) can risk during risk ((yang mu) OR (tan shu)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing ((((yan yi) OR (yan zi))) or (yang xi)) can risk during risk ((yang mu) or (tan shu)) ;*".