Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
chang yulu » chen yulu, chang you, chang yun
chen ying » chen yang, chen jing, chen yong
chen ping » chen rong, chen yang, chen wang
kong your » kong young, knowing your
yan yuan » yan guan, fang yuan, nan yan
kong siu » kong eiu, wong siu, dong sin

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: yan yuan chang yulu ((chen ying) OR (chen ping)) jin ((kong siu) OR (kong your)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yan yuan chang yulu ((chen ying) OR (chen ping)) jin ((kong siu) or (kong your)) ;~".
• Adding a wildcard symbol may retrieve word variants: yan yuan chang yulu ((chen ying) OR (chen ping)) jin ((kong siu) or (kong your)) ;*.