Perhaps you should try some spelling variations:
ying system » yang system, buying system, typing system
zhang ping » zhang ming, zhang jing, zhang ting
yang jui » yang judy, yang di
ping tan » wing tan, liang tan, ping wang
tan ying » fan ying, ran ying, tan yang
ying jin » yang jin, jing ji, yang jie
jin ying » li ying
wan yan » wang yan, nan yan, wai yan
yang xi » yang di
yang yi » yang di

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wan yan) or (((((yang jui) OR (yang xi))) or (yang yi)))) zhang ping tan ying jin ying system ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wan yan) OR (((((yang jui) OR (yang xi))) OR (yang yi)))) zhang ping tan ying jin ying system ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan yan) or (((((yang jui) OR (yang xi))) or (yang yi)))) zhang ping tan ying jin ying system ;*".