Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
bang luan » tang luan, hang luan, dung luan
luan dong » luan cong, quan dong, luan nong
dong cong » duong cong, dung cong, dang cong
anh bang » anh hoang, anh quang, tinh bang
dan toan » dan than, manh toan, xuan toan
van toan » van tuan, van tan, van thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - anh bang luan dong cong ((dan toan) OR (van toan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - anh bang luan dong cong ((dan toan) OR (van toan)) cao*".