Perhaps you should try some spelling variations:
smith tong » smith tony, smith don, smith tom
dan smith » adam smith, joan smith, d smith
yang lin » yang jin, wang lin, yang li
tong hui » wang hui
yang xi » yang di, yang yi, yang jui
lee dan » lee daten, lee jean, lee alan
wang » wing, wan, lang

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)) lee dan smith tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yanling ((yang xi) OR (yang lin)) lee dan smith tong hui ;.
• Adding a wildcard symbol may retrieve word variants: wang yanling ((yang xi) or (yang lin)) lee dan smith tong hui ;*.