Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
sang minh » kang minah, anh minh, song min
chan ming » kian ming, chan eng, chan fong
yang yaa » yang yao, yang yang, yang maha
hong hai » shang hai, zhong tai, dang hai
yaa hua » ya hua
hua ren » hua chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong yang yaa hua ren ((sang minh) or (chan ming)) hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang yaa hua ren ((sang minh) OR (chan ming)) hong hai ;.
• Adding a wildcard symbol may retrieve word variants: dong yang yaa hua ren ((sang minh) or (chan ming)) hong hai ;*.