Perhaps you should try some spelling variations:
yang wang » yang yang, yan wang, yang guang
sang minh » kang minah, anh minh, song min
dan sang » dan yang, dan dana, dan qing
hong hai » shang hai, zhong tai, dang hai
chang ha » chang mae
yan shi » yan zhi, yun shik
shi dan » shi fan, shi ding, shi jian

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang wang yan shi dan sang minh ((hong hai) or (chang ha)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang wang yan shi dan sang minh ((hong hai) OR (chang ha)) ;*.