Perhaps you should try some spelling variations:
tuning system » funding system, using system, training system
zhang ling » zhang ming, zhan ling, zhang jing
jin zhang » bin zhang, jia zhang, jie zhang
zhang jin » zhang jian, zhang jing, shang jin
li tuning » iii tuning, pid tuning, _ tuning
wai yan » wang yan, wei yang
yang yi » yang xi, yang jui

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 yi) OR (yang di)))) zhang jin zhang ling li tuning system ;~.
• Adding a wildcard symbol may retrieve word variants: ((wai yan) or (((yang yi) or (yang di)))) zhang jin zhang ling li tuning system ;*.