Perhaps you should try some spelling variations:
lang yanling » wang yanling, wang yangming, zhang yunling
wuhan china » tuan china, yunnan china
china zhang » china chang, cheng zhang, chin chang
ying yang » yin yang, ying chang, wang yang
yang yang » wang yang, wang yan
zhang han » zhang fan, zhang yan, zhang hanmo

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yanling wuhan china ((ying yang) or (yang yang)) china zhang han ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yanling wuhan china ((ying yang) OR (yang yang)) china zhang han ;*.