Perhaps you should try some spelling variations:
when zhang » zhen zhang, when change, cheng zhang
yan clan » das clan, yan yuan
yan guan » gan guan, yan yuan, yang guang
zhang ii » zhang i, zhang li, zhang si
yan kun » yan yuan
zi when » ii when
ii song » li song
shin » skin, sein, thin

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: lang ((((yan kun) OR (yan clan))) OR (yan guan)) zi when zhang ii song shin ;~.
• Adding a wildcard symbol may retrieve word variants: lang ((((yan kun) or (yan clan))) or (yan guan)) zi when zhang ii song shin ;*.