Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
tuan thong » toan thong, tran thong, tuan phong
thong cong » trong cong, tong cong, thong thong
tuan chinh » luan chinh, quang chinh, tuong chinh
cong tuan » cong tan, cong luan, cong thanh
chinh cau » chinh chau, chinh ca, chinh can

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) OR (chieu sach)) - ((thanh trung) or (thanh tung)) tuan thong cong tuan chinh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sach)) - ((thanh trung) OR (thanh tung)) tuan thong cong tuan chinh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sach)) - ((thanh trung) or (thanh tung)) tuan thong cong tuan chinh cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sach)) - ((thanh trung) or (thanh tung)) tuan thong cong tuan chinh cau*.