Perhaps you should try some spelling variations:
during crisis » during crises, housing crisis
risk during » risks during, risk using, crisis during
crisis box » crisis about
long span » long han
wang ryan » wang yan, wang yang, wang ban
long sin » dong sin, long run, long did
la risk » a risk, cva risk, era risk
box ai » box a

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: ((((long sin) OR (long span))) OR (wang ryan)) a la risk during crisis box ai ;~.
• Adding a wildcard symbol may retrieve word variants: ((((long sin) or (long span))) or (wang ryan)) a la risk during crisis box ai ;*.