Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
truong dao » truong cao, truong bo
nhung cong » dung cong, thong cong, hang cong
than cau » toan cau, phan cau, than cap
ty than » ty thanh, te than, tu than

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) OR (chieu sang)) - thanh ((truong dai) or (truong dao)) nhung cong ty than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - thanh ((truong dai) OR (truong dao)) nhung cong ty than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chieu sang)) - thanh ((truong dai) or (truong dao)) nhung cong ty than cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chieu sang)) - thanh ((truong dai) or (truong dao)) nhung cong ty than cau*.