Perhaps you should try some spelling variations:
yuan kang » yuan wang, yuan chang, chan kang
chia rene » chia wen, china ren
ching wen » ching kwan, ching fein, ching hea
kang tan » kang tae, kang han, liang tan
yang thi » dang thi, yang chik, yang di
thi hong » tan hong
hong yu » wong yue

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: yuan kang tan ((chia rene) or (ching wen)) yang thi hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan kang tan ((chia rene) OR (ching wen)) yang thi hong yu ;*.