Perhaps you should try some spelling variations:
during crisis » during crises, housing crisis
cost during » boost during, crust during, west during
huang jing » huang ting, huang ying, wang jing
yang jing » wang jing, yang jin, yang liang
land cost » land costs, land code, end cost
how slum » how slow, how sub
how sun » how sub, how sound

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((huang jing) or (yang jing)) land cost during crisis ((how slum) OR (how sun)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((huang jing) OR (yang jing)) land cost during crisis ((how slum) OR (how sun)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((huang jing) or (yang jing)) land cost during crisis ((how slum) OR (how sun)) ;*".