Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
cang thong » cang thang, cong thong, mang thong
thanh toan » thanh hoa, thanh san
dung cong » dung trong
thong va » thong cua, truong va, thong qua
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: theo ((chieu sach) OR (chieu sang)) - cang thong va dung cong ((tinh toan) or (thanh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu sang)) - cang thong va dung cong ((tinh toan) OR (thanh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) OR (chieu sang)) - cang thong va dung cong ((tinh toan) or (thanh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) OR (chieu sang)) - cang thong va dung cong ((tinh toan) or (thanh toan)) cau*.