Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
juan rene » juan meng, juan rana
hua rene » hua ren
ten minh » tuan minh, thi minh
ten high » set high, un high, bed high
yang ka » yang fan, yang yao
rong yu » hong yu, rong su, 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: dong yang ka ((hua rene) or (juan rene)) ((((ten minh) OR (ten high))) or (chi minh)) rong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang ka ((hua rene) OR (juan rene)) ((((ten minh) OR (ten high))) OR (chi minh)) rong yu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong yang ka ((hua rene) or (juan rene)) ((((ten minh) OR (ten high))) or (chi minh)) rong yu ;".
• Adding a wildcard symbol may retrieve word variants: dong yang ka ((hua rene) or (juan rene)) ((((ten minh) OR (ten high))) or (chi minh)) rong yu ;*.