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

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 yi)))) zhang ming (tan OR than) ying jin ying system ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wan yan) OR (((yang jui) OR (yang yi)))) zhang ming (tan OR than) ying jin ying system ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan yan) or (((yang jui) or (yang yi)))) zhang ming (tan OR than) ying jin ying system ;*".