Perhaps you should try some spelling variations:
alan smith » adam smith, ana smith, ann smith
smith tong » smith tony, smith don, smith tom
yang lin » yang jin, wang lin, yang li
lee alan » lee ann, lee jean, lee kuan
tong hui » wang hui
yang xi » yang yi, yang jui
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 di))) or (yang lin)) lee alan 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 lin)) lee alan smith tong hui ;.
• Adding a wildcard symbol may retrieve word variants: wang yanling ((((yang xi) or (yang di))) or (yang lin)) lee alan smith tong hui ;*.