Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien nhanh » hien hanh, thien thanh, dien thanh
tien thanh » tien thinh, tran thanh, den thanh
trung toan » truong toan, trung tuan, trung tran
thong cong » trong cong, tong cong, thong thong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh 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 (tien thanh)) - thanh trung toan thong cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (tien thanh)) - thanh trung toan thong cong dan than cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (tien thanh)) - thanh trung toan thong cong dan than cap*.