Perhaps you should try some spelling variations:
zhang ying » zhang ming, zhang jing, zhang ping
boon siong » soon siong, boon chong
jane chen » jean chen, jie chen, kang chen
tan chen » tan cheng, ta chen, jean chen
jean yan » jeang yean, jean wynn, jean n
yan boon » a boon, ar boon
siong ha » siong _

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 (jane chen)) jean yan boon siong ha ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "zhang ying ((tan chen) OR (jane chen)) jean yan boon siong ha ;*".