Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yuan wang » yuan kang, yuan chang, qian wang
hua rene » hua ren, juan rene
yan wang » qian wang, yan liang, yan zhang
hong ghi » zhong zhi, hong g
hong hai » shang hai, zhong tai, dang hai
yang ya » yang yao, yang yi, yang ka

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

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