Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
gian cham » gian cua, gian cac, gian ha
gian chau » gian cua, gian cac, tran chau
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, trinh va
tran van » luan van
cong dan » cong san, cong tan, huong dan

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 ((tranh va) or (tran van)) nhung cong dan ((gian cham) or (gian chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((tranh va) OR (tran van)) nhung cong dan ((gian cham) OR (gian chau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((tranh va) or (tran van)) nhung cong dan ((gian cham) or (gian chau))*.