Perhaps you should try some spelling variations:
yuan cheng » yuan chang, huang cheng, yu cheng
wang yuan » wang yuhan, wang yan, fang yuan
tan ying » fan ying, tan yang, tan yong
ran ying » fan ying, jin ying, gao ying
yang jie » yang jin, yang di, yang xi
yang jui » yang judy, yang di, yang xi
hai » hadi, haji, hari

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((tan ying) OR (ran ying)) wang yuan cheng ((yang jie) OR (yang jui)) dang hai ;~".
• Adding a wildcard symbol may retrieve word variants: ((tan ying) OR (ran ying)) wang yuan cheng ((yang jie) OR (yang jui)) dang hai ;*.