Perhaps you should try some spelling variations:
smith tong » smith tony, smith don, smith tom
dan smith » adam smith, joan smith, d smith
wang lin » wang li, wang qin, yang lin
tong hui » wang hui
yang xi » yang yi, yang jui
yang li » yang lin, yang yi, tang li
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 di))) or (((yang li) or (wang lin)))) lee dan smith tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yanling ((((yang xi) OR (yang di))) OR (((yang li) OR (wang lin)))) lee dan smith tong hui ;.
• Adding a wildcard symbol may retrieve word variants: wang yanling ((((yang xi) or (yang di))) or (((yang li) or (wang lin)))) lee dan smith tong hui ;*.