Perhaps you should try some spelling variations:
chasse john » class john, chassama john, changed john
change john » changed john, change japan, channon john
wong shiu » wong siu, cong shu, song shin
wang yao » wang yan, yang yao, gang yao
yao yang » yang yang
yang jia » yang jie, yang jin, yang jing
jia when » jia shen, java when, a when

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yao yang jia when ((change john) OR (chasse john)) wong shiu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yao yang jia when ((change john) OR (chasse john)) wong shiu ;".
• Adding a wildcard symbol may retrieve word variants: wang yao yang jia when ((change john) OR (chasse john)) wong shiu ;*.