Perhaps you should try some spelling variations:
yang yao » yang yang, wang yan, yang yi
hua rene » hua ren, juan rene
ten minh » tuan minh, thi minh, ten high
bed high » based high, oecd high, del high
yang ya » yang yi, yang ka, yang y
yang xi » yang di, yang yi, yang jui
cong yu » hong yu, rong yu, chong yun

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: dong ((((yang ya) OR (yang yao))) OR (yang xi)) hua rene ((ten minh) OR (bed high)) cong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((((yang ya) OR (yang yao))) or (yang xi)) hua rene ((ten minh) or (bed high)) cong yu ;~".
• Adding a wildcard symbol may retrieve word variants: dong ((((yang ya) OR (yang yao))) or (yang xi)) hua rene ((ten minh) or (bed high)) cong yu ;*.