Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
hieu xanh » hieu manh, hieu nganh, dieu hanh
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
cong anh » cong danh, dong anh, hong anh
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) OR (chieu xanh)) - thanh tung ((cua dung) or (cua dang)) cong anh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu xanh)) - thanh tung ((cua dung) OR (cua dang)) cong anh tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) OR (chieu xanh)) - thanh tung ((cua dung) or (cua dang)) cong anh tuan cau".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) OR (chieu xanh)) - thanh tung ((cua dung) or (cua dang)) cong anh tuan cau*.