Perhaps you should try some spelling variations:
during risk » using risk, during crises, during crisis
can costa » can cost, can postal, da costa
yang muxi » yang jui, yang xi, yang hui
wang ban » wang yan, wang dan, wang yang
von cash » von carl, can cash, do cash
wai ban » wai yan
yang mu » yang du, yang jui, yang jun

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wai ban) OR (wang ban)) ji ((can costa) or (von cash)) during risk ((yang mu) or (yang muxi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wai ban) OR (wang ban)) ji ((can costa) OR (von cash)) during risk ((yang mu) OR (yang muxi)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wai ban) OR (wang ban)) ji ((can costa) or (von cash)) during risk ((yang mu) or (yang muxi)) ;*".