Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
manh trung » manh tung, thanh trung, manh hung
nhung cong » dung cong, thong cong, hang cong
doc chieu » doc hieu, doi chieu, toc thieu
trung vap » trung cap, trung va, trung van
vap nhung » va nhung, ve nhung, voi nhung
cong dan » cong san, cong tan, huong dan
than cao » toan cao, than sao, than vao
thai cao » tai cao, thoai cac, thuat cao
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc chieu sach - manh trung vap nhung cong dan ((((than cao) or (thai cao))) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu sach - manh trung vap nhung cong dan ((((than cao) OR (thai cao))) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: doc chieu sach - manh trung vap nhung cong dan ((((than cao) or (thai cao))) or (than cap))*.