Perhaps you should try some spelling variations:
fang sudan » fang sidun, fang yuan, fund sudan
sudan chen » sudan ch
ying fang » jing fang, yin fang, ying yang
ran ying » fan ying, tan ying, jin ying
yang jun » pang jun, yang jin, yang judy
yang jui » yang judy, yang xi
yang yi » yang xi
hai » hadi, haji, hari

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: ran ying fang sudan chen ((((((yang jun) OR (yang jui))) OR (yang di))) OR (yang yi)) dang hai ;~.
• Adding a wildcard symbol may retrieve word variants: ran ying fang sudan chen ((((((yang jun) or (yang jui))) or (yang di))) or (yang yi)) dang hai ;*.