Perhaps you should try some spelling variations:
hien nhanh » thien thanh, tien thanh, dien thanh
thanh tung » thanh cong
hien hanh » dieu hanh
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 nhanh) or (hien hanh)) - 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 nhanh) OR (hien hanh)) - thanh tung cap hang ((cong ban) OR (cong tan)) hang cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (hien hanh)) - thanh tung cap hang ((cong ban) or (cong tan)) hang cap*.