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

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 chang han ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yanling wuhan china ((ying yang) OR (yang yang)) china chang han ;*.