Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
doc hieu » hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
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 hieu) OR (toc thieu)) sach - manh trung cua nhung cong dan than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (toc thieu)) sach - manh trung cua nhung cong dan than cap".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (toc thieu)) sach - manh trung cua nhung cong dan than cap*.