Perhaps you should try some spelling variations:
pelog changes » log change
changes bei » changes being, changes b, changes big
log pelog » log log
wang lei » wang fei, wang li, zhang lei
yang jin » yang jie, yang jun, ying jin
wang wei » zhang wei, wang zhi
bei den » bei der

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: log pelog changes bei den ((wang lei) OR (yang jin)) ((wang wei) OR (meng xin)) ;~.
• Adding a wildcard symbol may retrieve word variants: log pelog changes bei den ((wang lei) or (yang jin)) ((wang wei) or (meng xin)) ;*.