Perhaps you should try some spelling variations:
hyoung hoang » kyoung yang, dong hoang, young young
shang hai » shang kai, dang hai, chang ha
hoang sy » hoang vu
yang lin » yang jin, wang lin, yang liang
wong yue » wang yue, hong yu
yang li » yang di, yang xi, yang yi
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 hyoung hoang sy ((yang lin) OR (yang li)) yi ((shang hai) OR (wong yue)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang hyoung hoang sy ((yang lin) or (yang li)) yi ((shang hai) or (wong yue)) ;*.