Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
tieu xanh » tieu danh, dieu hanh, tien anh
hanh hang » thanh hang, hang hang, hanh han
cang manh » dang manh, hoang manh, quang manh
manh toan » thanh toan, anh tuan, tinh toan
va khong » va phong, va thuong, va phuong
va thong » va thuong, va phuong, he thong
toan cau » toan cao, toan ban, toan tap

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