Perhaps you should try some spelling variations:
tuning system » funding system, using system, training system
zhang jian » zhang fan, shang jin
li tuning » iii tuning, pid tuning, _ tuning
pei yun » lei kyun, mei yung, pei yang
yang xi » yang yi, yang jui
jian yi » jiang yi, jia yi, qian yi
yi ying » li ying, yi jing, yi ning
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: ((pei yun) OR (((yang xi) OR (yang di)))) zhang jian yi ying li tuning system ;~.
• Adding a wildcard symbol may retrieve word variants: ((pei yun) or (((yang xi) or (yang di)))) zhang jian yi ying li tuning system ;*.