Perhaps you should try some spelling variations:
dong sign » dong sin, among sign, dong bin
dong ping » dong sin, dong bin, dong jung
test tran » test strain, test track, test trace
hua test » a test
tran thi » trang thu
thi hong » tan hong
hong ghi » zhong zhi, hong g, hong hai
wang » wing, wan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((wang OR lang) yan) or (((dong ping) or (dong sign)))) ya hua test tran thi hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((wang OR lang) yan) OR (((dong ping) OR (dong sign)))) ya hua test tran thi hong ghi ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((wang OR lang) yan) or (((dong ping) or (dong sign)))) ya hua test tran thi hong ghi ;".
• Adding a wildcard symbol may retrieve word variants: (((wang OR lang) yan) or (((dong ping) or (dong sign)))) ya hua test tran thi hong ghi ;*.