Perhaps you should try some spelling variations:
chen yugang » chen huigang, chen yang
dong hoang » hong hong
chen yulan » chen yulu, chen yun
wang yang » wang yan, wang liang, wang yanling
min jeong » kin keong, min hong, mun leong
jeong seo » jeong yeon, hong seo, jeong su
yi hua » li hua, ya hua, yi hui

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong hoang) or (wang yang)) yi hua ((chen yugang) OR (chen yulan)) min jeong seo ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong hoang) OR (wang yang)) yi hua ((chen yugang) OR (chen yulan)) min jeong seo ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong hoang) or (wang yang)) yi hua ((chen yugang) OR (chen yulan)) min jeong seo ;".
• Adding a wildcard symbol may retrieve word variants: ((dong hoang) or (wang yang)) yi hua ((chen yugang) OR (chen yulan)) min jeong seo ;*.