Perhaps you should try some spelling variations:
housing bonds » housing costs
test housing » cost housing, test using, era housing
yang davis » yang dali
wang david » deng david, long david, tagg david
wang yong » wang yang, wang hyoung, wang yan
ng david » deng david, long david, 2 david
kong » long, hong, pong

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 yong ((yang davis) OR (((wang david) OR (ng david)))) test housing bonds kong (sar OR saur) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong ((yang davis) or (((wang david) OR (ng david)))) test housing bonds kong (sar or saur) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yong ((yang davis) or (((wang david) OR (ng david)))) test housing bonds kong (sar or saur) ;*.