Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
thanh tung » thanh cong
thanh chau » thanh cha, thanh cham, thanh chu
cua thong » cua thuong, cua khong, cua tong
thong ban » thong van, thong bai, thong dan
trong ban » trong san, trong tan, trong quan
tung cua » trung cua, tuong cua, dung cua

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