Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » tong cong, thong thong, phong chong
phan dang » phan dau, phan cong, nhan dan
manh toan » thanh toan, anh tuan, tinh toan
toan ban » van ban
dang va » dang van, dang vat, hang va

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)) - phan dang va ((thong cong) OR (trong cong)) manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - phan dang va ((thong cong) OR (trong cong)) manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sach)) - phan dang va ((thong cong) OR (trong cong)) manh toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - phan dang va ((thong cong) OR (trong cong)) manh toan ban*.