Perhaps you should try some spelling variations:
chen yong » chen rong, zhen yong, chen ping
chen gong » chen rong, chen ping, chen wang
chen yang » chen rong
hoang ya » hoang vu, hoang _, hoang h
hoang sy » hoang vu
min cong » minh cong, min hong, min jeong
cong ghi » hong ghi, cong shu

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

• Performing a fuzzy search may retrieve terms with similar spellings: anh ((hoang ya) or (hoang sy)) yi ((chen gong) or (((chen yong) OR (chen yang)))) min cong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: anh ((hoang ya) OR (hoang sy)) yi ((chen gong) OR (((chen yong) OR (chen yang)))) min cong ghi ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "anh ((hoang ya) or (hoang sy)) yi ((chen gong) or (((chen yong) OR (chen yang)))) min cong ghi ;*".