Perhaps you should try some spelling variations:
making system » making systems, banking system, imaging system
zhang ping » zhang ming, zhang jing, zhang ting
yang jui » yang judy, yang xi, yang yi
ping tan » wing tan, liang tan, ping wang
wai yan » wang yan, wei yang
xin hui » xing hui
qin hui » xing hui

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: ((wai yan) OR (((yang jui) OR (yang di)))) zhang ping tan ((xin hui) OR (qin hui)) making system ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wai yan) or (((yang jui) or (yang di)))) zhang ping tan ((xin hui) OR (qin hui)) making system ;~".
• Adding a wildcard symbol may retrieve word variants: ((wai yan) or (((yang jui) or (yang di)))) zhang ping tan ((xin hui) OR (qin hui)) making system ;*.