Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
nhung cong » dung cong, thong cong, hang cong
tien manh » tien anh, tien thanh, tieng anh
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua nhung » va nhung
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
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: hoc ((tien manh) or (hieu manh)) - ((hanh trinh) or (canh tranh)) cua nhung cong tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien manh) OR (hieu manh)) - ((hanh trinh) OR (canh tranh)) cua nhung cong tap toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((tien manh) or (hieu manh)) - ((hanh trinh) or (canh tranh)) cua nhung cong tap toan ban*.