Perhaps you should try some spelling variations:
china zhang » china chang, cheng zhang, chin chang
wang chang » huang chang, wang luhang, wang liang
chang chen » chang ch'un, chang chuan, change when
yang yang » wang yang, wang yan
zhang yan » zhang fan, zhang jian, wang yan
chen jun » chen yun, chen jian, chen dung
tan yong » tan hong, tan kong, tan yang
fan ying » fan xing, ran ying, tan ying

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: wang chang chen jun ((((tan yong) OR (fan ying))) OR (yang yang)) china zhang yan ;~.
• Adding a wildcard symbol may retrieve word variants: wang chang chen jun ((((tan yong) or (fan ying))) or (yang yang)) china zhang yan ;*.