Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thanh tung » thanh cong
hien xanh » hien hanh, chieu xanh, hien khanh
tung cap » trung cap, cung cap, thong cap
cap hang » cap hoang, cap bang, cap han
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
hang cap » hang ca, hang cau, hang cac

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)) - thanh tung cap hang ((cong ban) or (cong tan)) hang cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - thanh tung cap hang ((cong ban) OR (cong tan)) hang cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (hien nhanh)) - thanh tung cap hang ((cong ban) or (cong tan)) hang cap".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (hien nhanh)) - thanh tung cap hang ((cong ban) or (cong tan)) hang cap*.