Perhaps you should try some spelling variations:
tuning system » funding system, using system, training system
zhang ping » zhang ming, zhang jing, zhang ting
li tuning » iii tuning, pid tuning, _ tuning
wei yang » pei yang, wei wang, wei yang's
ping lin » ling li, ping jia, ping yi
lin ying » li ying, jin ying, lin ling
yang xi » yang yi, yang jui
ying li » ling li, yang li, yin li

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: ((wei yang) OR (((yang xi) OR (yang di)))) zhang ping lin ying li tuning system ;~.
• Adding a wildcard symbol may retrieve word variants: ((wei yang) or (((yang xi) or (yang di)))) zhang ping lin ying li tuning system ;*.