Perhaps you should try some spelling variations:
chasse john » change john, class john, chassama john
ren chasse » en classe
john wong » john song, john bonn
wing tan » wing ian, liang tan, hong tan
yuan hui » yuan fei, jaan hui, yang hui
tuan hua » tan hua, tuan vu
tan puay » tan hua

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing tan ((((yuan hui) OR (tuan hua))) or (tan puay)) ren chasse john wong (lai or laid) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing tan ((((yuan hui) OR (tuan hua))) OR (tan puay)) ren chasse john wong (lai OR laid) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing tan ((((yuan hui) OR (tuan hua))) or (tan puay)) ren chasse john wong (lai or laid) ;*".