Perhaps you should try some spelling variations:
zhang ying » zhang ming, zhang jing, zhang ping
boon chong » boon siong, joon chang
tan cheng » tang zheng, yuan cheng, tan hong
tan chen » ta chen, jane chen, jean 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 (tan cheng)) qian yan boon chong ha ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "zhang ying ((tan chen) OR (tan cheng)) qian yan boon chong ha ;*".