Perhaps you should try some spelling variations:
chang soon » chin soon, chang gordon
yang yang » wang yang, wang yan
yang jiao » wang qiao, yang jie, yang jin
chang won » chang ann, chang min, chang you
wong shiu » wong siu, cong shu, song shin
zhang zhi » zhong zhi, wang zhi, zhang wei
tan yang » dan yang, tan ying, tan yong
jiao shi » giao chi, jian she, jiao che

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tan yang yang jiao shi ((chang won) OR (chang soon)) ((wong shiu) OR (zhang zhi)) ;~.
• Adding a wildcard symbol may retrieve word variants: tan yang yang jiao shi ((chang won) or (chang soon)) ((wong shiu) or (zhang zhi)) ;*.