Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, cong trinh, truong thanh
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong ty
song van » hoang van, trong van, duong van
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh tang cua nhung ((((cong tan) OR (cong thanh))) or (song van)) tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tang cua nhung ((((cong tan) OR (cong thanh))) OR (song van)) tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh tang cua nhung ((((cong tan) OR (cong thanh))) or (song van)) tuan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tang cua nhung ((((cong tan) OR (cong thanh))) or (song van)) tuan ban*.