Perhaps you should try some spelling variations:
during risk » using risk, during crises, during crisis
cost during » boost during, crust during, west during
risk tong » risk among, risk along
tong shui » tong hui, cong shu, gong hui
end cost » end close, land cost, end iot
than big » than bling, mean big, than bad
yan big » land big, mean big
can big » can bring, mean big

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: wan ((yan big) OR (((can big) OR (than big)))) end cost during risk tong shui ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan ((yan big) or (((can big) OR (than big)))) end cost during risk tong shui ;~".
• Adding a wildcard symbol may retrieve word variants: wan ((yan big) or (((can big) OR (than big)))) end cost during risk tong shui ;*.