Perhaps you should try some spelling variations:
during crisis » during crises, housing crisis
crisis coping » crisis housing, crisis shaping, crisis during
wang zhang » wang luhang, zhang zhang, wang liang
wang zheng » tang zheng, wang zhenpo, fang sheng
coping shu » cong shu
end cost » end close, land cost, end iot
der cost » oder cost, user cost, debt 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 zhang) OR (wang zheng)) ying ((end cost) OR (der cost)) during crisis coping shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang zhang) OR (wang zheng)) ying ((end cost) or (der cost)) during crisis coping shu ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang zhang) OR (wang zheng)) ying ((end cost) or (der cost)) during crisis coping shu ;*.