Perhaps you should try some spelling variations:
hear gain » heat gain
dang hadi » dang hai
wang anh » dang anh, wang yang, wang yan
can hear » can gear, can learn, can help
wang lin » wang li, yang lin, wang limin
wang qin » wang qiao, wang jing, wang ning
anh can » anh tran, anh tuan
yang » 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 anh can hear gain ((((wang lin) OR (wang qin))) OR (yang di)) dang hadi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang anh can hear gain ((((wang lin) OR (wang qin))) or (yang di)) dang hadi ;~".
• Adding a wildcard symbol may retrieve word variants: wang anh can hear gain ((((wang lin) OR (wang qin))) or (yang di)) dang hadi ;*.