Perhaps you should try some spelling variations:
chiet tach » chieu sach
thong cua » thong quan, thong tu, huong cua
tang luan » dung luan
dong kinh » trong kinh
kinh toan » tinh toan, hinh toan, minh toan
ho chiet » ho chieu, ho thiet, hoc thiet
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - hanh ((thong cua) or (tang luan)) cong dong kinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - hanh ((thong cua) OR (tang luan)) cong dong kinh toan ban.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - hanh ((thong cua) or (tang luan)) cong dong kinh toan ban*.