Perhaps you should try some spelling variations:
during risk » during crises, during crisis, reducing risk
using risk » using rs, funding risk, rising risks
wang dan » wang yan, wang yidan, wang yang
wang ban » wang yan, wang yang, bang bang
yang end » yang anda, yang mind, yang d
end west » und west, end cost, end less

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: ((wang dan) OR (wang ban)) yang end west ((during risk) OR (using risk)) cong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang dan) or (wang ban)) yang end west ((during risk) OR (using risk)) cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang dan) or (wang ban)) yang end west ((during risk) OR (using risk)) cong shu ;*.