Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dong cong » duong cong, dung cong, dang cong
tinh cua » trinh cua, sinh cua, tinh chat
cua dong » chua dong, cua cong, cua dang
tac toan » tap toan, hach toan, tich toan
tam toan » tap toan, tam than, pham toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - hanh tinh cua dong cong ((tac toan) or (tam toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh tinh cua dong cong ((tac toan) OR (tam toan)) cao.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh tinh cua dong cong ((tac toan) or (tam toan)) cao*.