Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thanh trung » thanh tung
hien nhanh » hien hanh, tien thanh, dien thanh
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan 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 nhanh) or (thien thanh)) - thanh trung cua nhung cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (thien thanh)) - thanh trung cua nhung cong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (thien thanh)) - thanh trung cua nhung cong dan toan tap*.