Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
trong dan » trong dang, trong tan, trong ban
trong san » trong cac, cong san, dong san
tung vat » dung vat, tang vat, tung va
vat dung » van dung, va dung, viet dung
thai cao » tai cao, thoai cac, thuat cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) OR (chieu sach)) - thanh tung vat dung ((trong dan) or (trong san)) thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - thanh tung vat dung ((trong dan) OR (trong san)) thai cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu sach)) - thanh tung vat dung ((trong dan) or (trong san)) thai cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu sach)) - thanh tung vat dung ((trong dan) or (trong san)) thai cao*.