Perhaps you should try some spelling variations:
smith dong » smith don, smith tony, smith donald
dan smith » adam smith, joan smith, d smith
yang lin » yang jin, yang li, yang liang
wang lin » wang li, wang qin, wang limin
dong hua » wang hua, tong hui, dong hoi
yang xi » yang di, yang yi, yang jui
lee dan » lee daten, lee jean, lee alan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yanling ((yang xi) or (((yang lin) or (wang lin)))) lee dan smith dong hua ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yanling ((yang xi) OR (((yang lin) OR (wang lin)))) lee dan smith dong hua ;.
• Adding a wildcard symbol may retrieve word variants: wang yanling ((yang xi) or (((yang lin) or (wang lin)))) lee dan smith dong hua ;*.