Perhaps you should try some spelling variations:
dong wang » dong yang, hong wang, dong hoang
wang yang » wang yan, wang liang, wang yanling
chan kang » chung kang, chan eng, chan fong
yang hua » wang hua, yang hui, ying hua
hua test » a test
yan tin » yuan ting, yang jin, yang lin
hong yu » wong yue

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong wang yang hua test ((yan tin) or (chan kang)) hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong wang yang hua test ((yan tin) OR (chan kang)) hong yu ;.
• Adding a wildcard symbol may retrieve word variants: dong wang yang hua test ((yan tin) or (chan kang)) hong yu ;*.