Perhaps you should try some spelling variations:
hanh truong » hanh trong, anh truong, manh truong
chiet tach » chieu sach
hieu nganh » vien nganh, hiem ngan, hieu manh
truong cua » truong ca, truong quan, truong cao
cong trong » cong thuong, duong trong, cong trinh
cac toan » cac khoan, hach toan, cac thanh
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chiet tach) or (hieu nganh)) - hanh truong cua cong trong cac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chiet tach) OR (hieu nganh)) - hanh truong cua cong trong cac toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((chiet tach) or (hieu nganh)) - hanh truong cua cong trong cac toan cao*.