Perhaps you should try some spelling variations:
gear gain » gear pair, heat gain
liang dan » liang tan, king dan, liang sun
dang hadi » dang hai
wing tan » wing ian, liang tan, hong tan
can gear » can hear, can learn, can get
yang lin » yang jin, wang lin, yang li
yang xi » yang di, yang jui
yang yi » yang di, yang jui

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: ((wing tan) OR (liang dan)) can gear gain ((yang lin) OR (((yang xi) OR (yang yi)))) dang hadi ;~.
• Adding a wildcard symbol may retrieve word variants: ((wing tan) or (liang dan)) can gear gain ((yang lin) or (((yang xi) or (yang yi)))) dang hadi ;*.