Perhaps you should try some spelling variations:
chung kang » chan kang, chung kay, chung tong
china rene » china ren, china real, china reza
china rate » china state, china water, china rail
chan eng » chan fong, chan kang, chan ming
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((chan eng) OR (chung kang)) hoang ((china rene) OR (china rate)) yang thi hong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((chan eng) or (chung kang)) hoang ((china rene) OR (china rate)) yang thi hong yu ;~".
• Adding a wildcard symbol may retrieve word variants: ((chan eng) or (chung kang)) hoang ((china rene) OR (china rate)) yang thi hong yu ;*.