Perhaps you should try some spelling variations:
trong thuong » thong thuong, trong tuong, cong thuong
hien khanh » hien hanh, dien khanh, thien thanh
hien nhanh » hien hanh, thien thanh, tien thanh
trung tuan » trung thanh, tran tuan, truong thanh
thuong dan » huong dan, thuong han, thuong dam
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien khanh) or (hien nhanh)) - hanh ((trung tuan) or (trung tam)) trong thuong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien khanh) OR (hien nhanh)) - hanh ((trung tuan) OR (trung tam)) trong thuong dan than ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien khanh) or (hien nhanh)) - hanh ((trung tuan) or (trung tam)) trong thuong dan than ban*.