Perhaps you should try some spelling variations:
during risk » using risk, during crises, during crisis
wang liang » wang yang
liang jing » liang ying, wang jing, bian jing
using rs » using r, using risk, using _
how shih » how six, how she
jing eu » jing guo, jing zhu, using eu
eu cost » au costa, der cost, end cost

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 liang jing eu cost ((during risk) OR (using rs)) how shih ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang jing eu cost ((during risk) or (using rs)) how shih ;*.