Perhaps you should try some spelling variations:
yuan wang » yan wang, yuan kang, yuan chang
han chang » huang chang, than change, can change
zhang shu » zhang shuo, chang su, zhang hui
kai jing » cai jing, cao jing, kai fang
ji zhang » jia zhang, jie zhang, li zhang
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 zhang shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((yuan wang) OR (han chang)) hui kai jing ji zhang shu ;.
• Adding a wildcard symbol may retrieve word variants: dong ((yuan wang) or (han chang)) hui kai jing ji zhang shu ;*.