Perhaps you should try some spelling variations:
yao chong » yew chong, bai chong, gao zhong
yung chen » yu chen, yulu chen, kang chen
chang ann » chang min, chang won, chang yun
chang mae » chang ha, changes made
jeong shu » jeong su, cong shu
wang yao » wang yan, yang yao, gang yao
yun chen » yu chen, yuan cheng, yulu chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yao chong ((yun chen) OR (yung chen)) ((chang ann) or (chang mae)) jeong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yao chong ((yun chen) OR (yung chen)) ((chang ann) OR (chang mae)) jeong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yao chong ((yun chen) OR (yung chen)) ((chang ann) or (chang mae)) jeong shu ;".
• Adding a wildcard symbol may retrieve word variants: wang yao chong ((yun chen) OR (yung chen)) ((chang ann) or (chang mae)) jeong shu ;*.