Perhaps you should try some spelling variations:
change motor » change major, change minor, change method
chang min » zhang ming, chang mae, chan ming
yan yang » yang yang, yao yang, dan yang
yang yun » yang jun, tang yun, yang yue
yun lu » lun lu, yun yu
wang » wing, wan, lang
shin » skin, sein, thin

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan yang yun lu ((chang min) or (change motor)) song shin ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan yang yun lu ((chang min) OR (change motor)) song shin ;.
• Adding a wildcard symbol may retrieve word variants: wang yan yang yun lu ((chang min) or (change motor)) song shin ;*.