Perhaps you should try some spelling variations:
tested using » test using, tests using, system using
liang using » liang ying, yang using, change using
wang liang » wang yang
bank long » bank loans, bank loan, bank bond
using ai » using a, using big, using _
long sar » kong sar, long span, long arm

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 liang using ai ((tested using) OR (testing using)) bank long sar ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang using ai ((tested using) or (testing using)) bank long sar ;*.