Perhaps you should try some spelling variations:
tested using » tests using, testing using, system using
yang davis » wang david
test using » tests using, testing using
yang dali » yang di, bang dai, yang all
bank kong » bank long, bank bond
kong star » kong sar
wang » wing, wan, lang

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 yanling ((yang davis) OR (yang dali)) ((tested using) OR (test using)) bank kong star ;~.
• Adding a wildcard symbol may retrieve word variants: wang yanling ((yang davis) or (yang dali)) ((tested using) or (test using)) bank kong star ;*.