Perhaps you should try some spelling variations:
housing costs » housing census
yan liang » yang liang, wang liang, you liang
yang yang » wang yang, wang yan
kong siu » kong eiu, wong siu, kong sar
wei a » wei ta, wei ya, web a
bei a » bei _
housing » housigng, housindg, housking
sin » sign, sind, skin

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan ((yan liang) or (yang yang)) ((wei a) or (bei a)) housing costs ((kong siu) OR (dong sin)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan ((yan liang) OR (yang yang)) ((wei a) OR (bei a)) housing costs ((kong siu) OR (dong sin)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan ((yan liang) or (yang yang)) ((wei a) or (bei a)) housing costs ((kong siu) OR (dong sin)) ;*".