Perhaps you should try some spelling variations:
during crisis » during crises, housing crisis
wang zhang » wang zheng, wang luhang, zhang zhang
zhang ping » zhang ming, zhang jing, zhang ting
un debat » un debate, le debat
du debat » le debat, du depot
le debut » le debat, au debut
how she » how some, how safe, how shih

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 zhang ping ((((un debat) OR (du debat))) OR (le debut)) during crisis how she ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang zhang ping ((((un debat) OR (du debat))) or (le debut)) during crisis how she ;~".
• Adding a wildcard symbol may retrieve word variants: wang zhang ping ((((un debat) OR (du debat))) or (le debut)) during crisis how she ;*.