Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
manh toan » thanh toan, anh tuan, tinh toan
van than » van thanh, van thang, van tuan

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 tinh ((cua thong) OR (cua khong)) cong ((manh toan) OR (van than)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh tinh ((cua thong) OR (cua khong)) cong ((manh toan) or (van than)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh tinh ((cua thong) OR (cua khong)) cong ((manh toan) or (van than)) cau*.