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
tuan thong » toan thong, tran thong, tuan phong
hoc chieu » hoc thieu, ho chieu, hoc hien
cong van » cong vang, song van, cong tan
cong san » cong tac
tang ban » tang bang, tiang ban, tang van

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 thong ((cong van) OR (cong san)) tang ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh trung tuan thong ((cong van) OR (cong san)) tang ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh trung tuan thong ((cong van) OR (cong san)) tang ban*.