Perhaps you should try some spelling variations:
hanh bang » anh bang, hanh mang, lanh bang
bang luan » tang luan, hang luan, dung luan
danh cong » dang cong, anh cong, dinh cong
hanh cong » thanh cong, hang cong, hanh dong
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - hanh bang luan ((danh cong) OR (hanh cong)) ((dan toan) or (dan than)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - hanh bang luan ((danh cong) OR (hanh cong)) ((dan toan) OR (dan than)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu sach - hanh bang luan ((danh cong) OR (hanh cong)) ((dan toan) or (dan than)) tap".
• Adding a wildcard symbol may retrieve word variants: theo chu sach - hanh bang luan ((danh cong) OR (hanh cong)) ((dan toan) or (dan than)) tap*.