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

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

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