Perhaps you should try some spelling variations:
startup doing » start doing
liang gang » liang tan, liang ying
doing here » going where, doing more, being here
liang dan » liang tan, king dan, liang sun
a startup » _ startup, _ startups, lean startup
dan yang » daun yang, tan yang, wang yang
sin » sign, sind, skin

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 ((liang gang) OR (liang dan)) a startup doing here ((dan yang) OR (dong sin)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((liang gang) or (liang dan)) a startup doing here ((dan yang) or (dong sin)) ;*.