Perhaps you should try some spelling variations:
toan thuat » toan thuc, toan thue, toan hoat
toan thiet » hoan thien, luan thiet, toan tien
nhung cong » dung cong, thong cong, hang cong
hien hanh » dieu hanh
cong ban » cong bang, cong san, cong tan
ban khan » ban than, ban nhan, ban chan
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien hanh - tinh ((toan thuat) or (toan thiet)) nhung cong ban khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - tinh ((toan thuat) OR (toan thiet)) nhung cong ban khan cap.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - tinh ((toan thuat) or (toan thiet)) nhung cong ban khan cap*.