Perhaps you should try some spelling variations:
era housing » a housing, rural housing, core housing
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
bank kong » bank long, bank bond

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong yang davis ((test using) or (era housing)) bank kong (sar OR saur) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong yang davis ((test using) OR (era housing)) bank kong (sar OR saur) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong yang davis ((test using) or (era housing)) bank kong (sar OR saur) ;".
• Adding a wildcard symbol may retrieve word variants: wang yong yang davis ((test using) or (era housing)) bank kong (sar OR saur) ;*.