Perhaps you should try some spelling variations:
trong thuong » thong thuong, trong tuong, cong thuong
hien nhanh » hien hanh, thien thanh, tien thanh
trung tuan » trung thanh, trung tam, truong thanh
thuong dan » huong dan, thuong han, thuong dam
hien xanh » hien hanh, chieu xanh, hien khanh
tran tuan » tran xuan, tran quang, tran thanh
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 xanh) or (hien nhanh)) - hanh ((trung tuan) OR (tran tuan)) trong thuong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - hanh ((trung tuan) OR (tran tuan)) trong thuong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (hien nhanh)) - hanh ((trung tuan) OR (tran tuan)) trong thuong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien nhanh)) - hanh ((trung tuan) OR (tran tuan)) trong thuong dan toan ban*.