Perhaps you should try some spelling variations:
zhang ying » zhang ming, zhang jing, zhang ping
tang zheng » wang zheng, fang sheng, fang zhen
boon chong » boon siong, joon chang
tan chen » tan cheng, ta chen, jane chen
qian yan » qian jun, qian yi
yan boon » a boon, ar boon
chong ha » chang ha, chong nam, chong wan

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

• Performing a fuzzy search may retrieve terms with similar spellings: zhang ying ((tan chen) or (tang zheng)) qian yan boon chong ha ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: zhang ying ((tan chen) OR (tang zheng)) qian yan boon chong ha ;*.