Perhaps you should try some spelling variations:
di terrence » di erence, deal terrence
yang fang » yang yang, yang fan, yang guang
fang yuan » wang yuhan, wang yan, meng yuan
dr rene » der rent
yi hong » yi rong, kia hong, thi hong
hong yu » wong yue
tan yi » tang yi, tan li, tan ying

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: yang fang yuan ((dr rene) OR (di terrence)) tan yi hong yu ;~.
• Adding a wildcard symbol may retrieve word variants: yang fang yuan ((dr rene) or (di terrence)) tan yi hong yu ;*.