Perhaps you should try some spelling variations:
when zhang » zhen zhang, when change, cheng zhang
zhang yan » zhang fan, zhang jian, wang yan
clan gene » klann gene
wong laid » wong lai
kong land » kong hang, kong lyn
yan clan » das clan, yan guan, yan yuan
ying jin » yang jin, jing ji, yang jie
yang » lang, wang

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

• Performing a fuzzy search may retrieve terms with similar spellings: when zhang yan clan gene ((ying jin) or (yang di)) ((wong laid) OR (kong land)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: when zhang yan clan gene ((ying jin) OR (yang di)) ((wong laid) OR (kong land)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "when zhang yan clan gene ((ying jin) or (yang di)) ((wong laid) OR (kong land)) ;*".