Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
yang yang » wang yang, wang yan
hua rene » hua ren, juan rene
yang jin » yang jie, yang jun, ying jin
yang lin » wang lin, yang li, yang liang
wong yue » wang yue
dan hua » tan hua, wang hua, dong hua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yuan chang) OR (yang yang)) dan hua rene ((yang jin) OR (yang lin)) ((wong yue) OR (hong yu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yuan chang) OR (yang yang)) dan hua rene ((yang jin) OR (yang lin)) ((wong yue) OR (hong yu)) ;".
• Adding a wildcard symbol may retrieve word variants: ((yuan chang) OR (yang yang)) dan hua rene ((yang jin) OR (yang lin)) ((wong yue) OR (hong yu)) ;*.