Perhaps you should try some spelling variations:
deng david » deming david, leung david, seong david
test using » tests using, tested using, testing using
wang qian » wang qiao, wang qin, wang liang
qian deng » qian sheng, qian rong, qian wang
2 housing » 4 housing, a housing, 3 housing
kong saur » kong sar, kong siu, kong your
dong skin » dong sin, dong bin, dof skin

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 qian deng david ((test using) OR (2 housing)) a ((kong saur) OR (dong skin)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang qian deng david ((test using) or (2 housing)) a ((kong saur) or (dong skin)) ;*.