Perhaps you should try some spelling variations:
during risk » during crises, during crisis, reducing risk
using risk » using rs, funding risk, rising risks
wang yang » wang yan, wang liang, wang yanling
yang ying » yang yang, yang jing, huang ying
ying der » ding der
der cost » oder cost, user cost, debt cost
how shih » how six, how she

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 yang ying der cost ((during risk) OR (using risk)) how shih ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang ying der cost ((during risk) or (using risk)) how shih ;*.