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
era china » a china
tan yang » dan yang, tan ying, tan yong
yang yue » wang yue, yang yun, yang jui
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)) era china zhang soon ((ang yue) OR (yang yue)) ;~.
• Adding a wildcard symbol may retrieve word variants: lang ((tan yang) or (yang yang)) era china zhang soon ((ang yue) or (yang yue)) ;*.