Perhaps you should try some spelling variations:
yunnan china » tuan china, wuhan china, yunnan sheng
yuan chang » yuan cheng, huang chang, han chang
huang yang » huang ying, huang chang, wang yang
rene long » renewal long
long life » long live, longer life, long lived
life wong » life long, life among, life work
wong yue » wang yue, hong yu

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: ((yuan chang) OR (huang yang)) ((yunnan china) OR (urban china)) rene long life wong yue ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yuan chang) or (huang yang)) ((yunnan china) OR (urban china)) rene long life wong yue ;~".
• Adding a wildcard symbol may retrieve word variants: ((yuan chang) or (huang yang)) ((yunnan china) OR (urban china)) rene long life wong yue ;*.