Perhaps you should try some spelling variations:
changed john » changed our, changed post, changed rome
change john » chasse john, change japan, channon john
yang java » yang maha
java when » data when
yan yang » yang yang, yao yang, dan yang
kong siu » kong eiu, wong siu, dong sin
wang » wing, wan, lang

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: wang yan yang java when ((change john) OR (changed john)) kong siu ;~.
• Adding a wildcard symbol may retrieve word variants: wang yan yang java when ((change john) or (changed john)) kong siu ;*.