Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
trong dan » trong dang, trong san, trong tan
chinh va » chinh ta, chinh tai, hanh va
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((chieu xanh) or (chieu sang)) - hanh chinh va dung trong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chieu xanh) OR (chieu sang)) - hanh chinh va dung trong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: cho ((chieu xanh) or (chieu sang)) - hanh chinh va dung trong dan toan cau*.