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

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 ((dan toan) or (ban than)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - hanh bang luan danh cong ((dan toan) OR (ban than)) tap.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - hanh bang luan danh cong ((dan toan) or (ban than)) tap*.