Perhaps you should try some spelling variations:
china zhang » china chang, cheng zhang, chin chang
zhang soon » chang soon
yang yang » wang yang, wang yan
tan yang » dan yang, tan ying, tan yong
yang yue » wang yue, yang jui, yang yi
yang yun » yang jun, tang yun, chang yun
3 china » 2 china, 4 china, 3 china's
ang yue » wang yue, wong yue, mang yul

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 ((tan yang) OR (yang yang)) 3 china zhang soon ((ang yue) OR (((yang yue) OR (yang yun)))) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang ((tan yang) or (yang yang)) 3 china zhang soon ((ang yue) or (((yang yue) OR (yang yun)))) ;~".
• Adding a wildcard symbol may retrieve word variants: lang ((tan yang) or (yang yang)) 3 china zhang soon ((ang yue) or (((yang yue) OR (yang yun)))) ;*.