Perhaps you should try some spelling variations:
"so sanh nganh ky thuat toan hoc" » "so anh ngan ky thuat toan hoc", "so dang nganh ky thuat toan hoc", "so sang ngang ky thuat toan hoc", "so sanh nganh y thuat toan hoc", "so sanh nganh xay thuat toan hoc", "so sanh hanh ky thuat toan hoc", "so sanh nganh ky thuat toan khoa", "so sanh nganh ky thuat van hoc", "so sanh nganh ky thuat hoa hoc", "do sanh nganh ky thuat toan hoc"
"so sach ngan ky thuat toan hoc" » "so sach ngon ky thuat toan hoc", "so sach nha ky thuat toan hoc", "so sach han ky thuat toan hoc", "so sach ngan ky thuat toan khoa", "so sach ngan ky thuat van hoc", "so sach ngan ky thuat hoa hoc", "bo sach ngan ky thuat toan hoc", "co sach ngan ky thuat toan hoc", "hoc sach ngan ky thuat toan hoc", "so sach nhan ky thuat toan hoc", "so sach ngan hay thuat toan hoc", "so sach nganh ke thuat toan hoc"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("so sanh nganh ky thuat toan hoc") or ("so sach ngan ky thuat toan hoc"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("so sanh nganh ky thuat toan hoc") OR ("so sach ngan ky thuat toan hoc")).
• Removing quotes may allow a broader search: (( so sanh nganh ky thuat toan hoc ) or ( so sach ngan ky thuat toan hoc )).
• Adding a wildcard symbol may retrieve word variants: (("so sanh nganh ky thuat toan hoc") or ("so sach ngan ky thuat toan hoc"))*.