Perhaps you should try some spelling variations:
dong hoang » hong hong
rene yuan » meng yuan
yuan kang » yuan wang, yuan chang, chan kang
shang hai » shang kai, dang hai, hong hai
hoang sy » hoang vu
hua rene » hua ren, juan rene
hong ghi » zhong zhi, hong g, hong hai
chang ha » chang mae

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong hoang sy hua rene yuan kang ((hong ghi) or (((shang hai) or (chang ha)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong hoang sy hua rene yuan kang ((hong ghi) OR (((shang hai) OR (chang ha)))) ;.
• Adding a wildcard symbol may retrieve word variants: dong hoang sy hua rene yuan kang ((hong ghi) or (((shang hai) or (chang ha)))) ;*.