Perhaps you should try some spelling variations:
test housing » test using, era housing, tested using
yang davis » wang david, yang dali
wang ying » wang yang, wang yong, wang jing
ying yang » yang yang, yin yang, ying chang
kong saur » kong sar, kong siu, kong your
kong sara » kong sar
cost » costs

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