Perhaps you should try some spelling variations:
dong hoang » hong hong
guan kang » chan kang
yuan kang » yuan wang, yuan chang, chan kang
von jung » von jungen, dong jung, moon jung
kim tong » kim song, kim dong, kim jong
tong hui » wang hui
e gan » _ gan, e man, 2 gan
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yan) or (((von jung) or (dong hoang)))) e gan ((guan kang) OR (yuan kang)) kim tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yan) OR (((von jung) OR (dong hoang)))) e gan ((guan kang) OR (yuan kang)) kim tong hui ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yan) or (((von jung) or (dong hoang)))) e gan ((guan kang) OR (yuan kang)) kim tong hui ;*".