Perhaps you should try some spelling variations:
"so dinh hanh ky thuat dai hoc" » "so dinh thanh ky thuat dai hoc", "so dinh khanh ky thuat dai hoc", "so dinh hoang ky thuat dai hoc", "so dinh hanh ky thuat bai hoc", "so dinh hanh ky thuat dam hoc", "so dinh hanh ky thuat cai hoc", "do dinh hanh ky thuat dai hoc", "co dinh hanh ky thuat dai hoc", "so sinh hanh ky thuat dai hoc", "so dinh hanh kem thuat dai hoc"
"so sanh nhan ky thuat toan hoc" » "so danh nhan ky thuat toan hoc", "so anh nhan ky thuat toan hoc", "so hanh nhan ky thuat toan hoc", "so sanh nhan ky thuat toan khoa", "so sanh nhan ky thuat van hoc", "so sanh nhan ky thuat hoa hoc", "do sanh nhan ky thuat toan hoc", "so sanh nhan y thuat toan hoc", "so sanh nhat ky thuat toan hoc", "so sanh than ky 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 dinh hanh ky thuat dai hoc") or ("so sanh nhan ky thuat toan hoc"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("so dinh hanh ky thuat dai hoc") OR ("so sanh nhan ky thuat toan hoc")).
• Removing quotes may allow a broader search: (( so dinh hanh ky thuat dai hoc ) or ( so sanh nhan ky thuat toan hoc )).
• Adding a wildcard symbol may retrieve word variants: (("so dinh hanh ky thuat dai hoc") or ("so sanh nhan ky thuat toan hoc"))*.