Perhaps you should try some spelling variations:
during risk » using risk, during crises, during crisis
wang yang » wang yan, wang liang, wang yanling
risk log » risk along, risk loss
log tail » long tail
a risks » a risk, 2 risks, 3 risks
a risky » a risk, _ risky
dong » doing, long, done

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: ((dong sin) OR (wang yang)) a ((a risks) OR (a risky)) during risk log tail ;~.
• Adding a wildcard symbol may retrieve word variants: ((dong sin) or (wang yang)) a ((a risks) or (a risky)) during risk log tail ;*.