Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thanh tran » thanh trang, thanh toan, thanh tra
hien xanh » hien hanh, chieu xanh, hien khanh
tran tuan » tran xuan, tran quang, tran thanh
tuan cong » thuan cong, luan cong, tran cong
cong cong » cong dong, trong cong, dung cong
van toan » van tuan, van thanh, manh toan
van tan » van tuan, van ban, van tai

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 tran tuan cong cong ((van toan) or (van tan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - thanh tran tuan cong cong ((van toan) OR (van tan)) ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (hien nhanh)) - thanh tran tuan cong cong ((van toan) or (van tan)) ban*".