Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang guan » yang guang, yan guan, yang dean
kian lia » kian wie, tian li
lia rong » li rong, qian rong, yi rong
dr rene » der rent
rong yu » hong yu, rong su, wong yue
erence » terence, terrence

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 yang guan ((dr rene) OR (di erence)) kian lia rong yu ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang guan ((dr rene) or (di erence)) kian lia rong yu ;*.