Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hieu xanh » chieu xanh, hieu manh, hieu nganh
chua dong » ha dong, huy dong, hoa dong
trong dan » trong dang, trong san, trong tan
dan thanh » dang thanh, danh thanh, ban thanh
thanh lap » thanh san, phan lap, thanh hai
anh tang » anh bang, anh dang, anh nang
cua dong » cua cong, cua dang, cua nong

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

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