Perhaps you should try some spelling variations:
yuan wang » yan wang, yuan kang, yuan chang
han chang » huang chang, than change, can change
zhong shu » zhang shuo, cong shu, zhong zhi
kai jing » cai jing, cao jing, kai fang
ji zhong » 2 zhong, wu zhong, yu zhong
hui kai » hui kian, phua kai
jing ji » ying jin

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong ((yuan wang) or (han chang)) hui kai jing ji zhong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((yuan wang) OR (han chang)) hui kai jing ji zhong shu ;.
• Adding a wildcard symbol may retrieve word variants: dong ((yuan wang) or (han chang)) hui kai jing ji zhong shu ;*.