Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
trung tuan » trung thanh, trung tam, tran tuan
hoc chieu » hoc thieu, ho chieu, hoc hien
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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 sach - hanh trung tuan ((hang cong) or (bang cong)) dan ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh trung tuan ((hang cong) OR (bang cong)) dan ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh trung tuan ((hang cong) or (bang cong)) dan ((toan cau) or (toan tap))*.