Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh bang » hanh mang, lanh bang, hanh trang
cua nhung » va nhung
hach toan » thanh toan, manh toan
anh bang » anh hoang, anh quang, tinh bang
tac toan » tap toan, tam toan, tich toan

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh bang) OR (anh bang)) cua nhung cong ((tac toan) OR (hach toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh bang) or (anh bang)) cua nhung cong ((tac toan) OR (hach toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh bang) or (anh bang)) cua nhung cong ((tac toan) OR (hach toan)) cau*.