Perhaps you should try some spelling variations:
zhang jian » zhang fan, shang jin
chen zhang » cheng zhang, zhen zhang, chen zheng
zhang boon » chang soon, cheng boon, zhang boyang
boon chong » boon siong, joon chang
yang xi » yang jui
yang yi » yang jui
chong c » chang c, chong _, chong en
a chen » ta chen, _ chen, n chen
ng a » lng a, ngo a, png a
a a » a la

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((zhang jian) or (yang xi))) or (((yang di) or (yang yi))))ng a a chen zhang boon chong c ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((zhang jian) OR (yang xi))) OR (((yang di) OR (yang yi))))ng a a chen zhang boon chong c ;.
• Adding a wildcard symbol may retrieve word variants: ((((zhang jian) or (yang xi))) or (((yang di) or (yang yi))))ng a a chen zhang boon chong c ;*.