Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, danh trung
manh trung » manh tung, thanh trung, manh hung
hieu sach » chieu sach, hieu cach, hieu cac
dien sach » dien anh
hang cong » dang cong, hang nong, bang cong
cua hang » cua dang, cua nhung, cua cong
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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 sach) OR (dien sach)) - ((hanh trung) or (manh trung)) cua hang cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu sach) OR (dien sach)) - ((hanh trung) OR (manh trung)) cua hang cong dan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu sach) OR (dien sach)) - ((hanh trung) or (manh trung)) cua hang cong dan van ban".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu sach) OR (dien sach)) - ((hanh trung) or (manh trung)) cua hang cong dan van ban*.