Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
gian baca » gian bana, gian cac, gian dac
cong dan » cong san, cong tan, huong dan
gian bac » gian cac, gian dac, gian dan

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 cua nhung cong dan ((gian bac) or (gian baca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh trung cua nhung cong dan ((gian bac) OR (gian baca)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh trung cua nhung cong dan ((gian bac) or (gian baca))*.