Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh toan » thanh hoa, thanh san, tinh toan
hoc thieu » toc thieu, hoc hien
tuan han » tuan hoan, luan han, tran han
tong tac » tuong tac, trong tac, cong tac
tac toan » tap toan, tam toan, hach 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 thieu xanh - ((thanh toan) or (thanh pho)) tuan han tong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((thanh toan) OR (thanh pho)) tuan han tong tac toan tap*.