Perhaps you should try some spelling variations:
kang minah » sang minh
dong hoang » hong hong
yang minh » sang minh, yang mind, anh minh
hoang yi » hoang vu, yang yi, hoang sy
long shu » cong shu, tong shui, long du
wong sam » wong sau, wong lai, kong sar
ta test » a test, data test, beta test

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong hoang yi ta test ((yang minh) or (kang minah)) ((long shu) or (wong sam)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong hoang yi ta test ((yang minh) OR (kang minah)) ((long shu) OR (wong sam)) ;.
• Adding a wildcard symbol may retrieve word variants: dong hoang yi ta test ((yang minh) or (kang minah)) ((long shu) or (wong sam)) ;*.