Perhaps you should try some spelling variations:
test housing » cost housing, era housing, tested using
yang davis » wang david, yang dali
test using » tests using, tested using, testing using
wang yong » wang yang, wang hyoung, wang yan
yong yang » yang yang, dong yang, ying yang
kong saur » kong siu, kong your, wong sau
sar » sara, star

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