Perhaps you should try some spelling variations:
how changes » new changes, law changes, allow changes
how change » how exchange, how chuang, new change
zhang yao » zhang yan, zhang ya, zhang xiao
how cheng » hew cheng, hong cheng, how chuang
yao yang » yang yang
yang xi » yang di, yang yi, yang jui
xi most » ii most

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: zhang yao yang xi most out ((how cheng) OR (((how change) OR (how changes)))) yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "zhang yao yang xi most out ((how cheng) or (((how change) OR (how changes)))) yu ;~".
• Adding a wildcard symbol may retrieve word variants: zhang yao yang xi most out ((how cheng) or (((how change) OR (how changes)))) yu ;*.