Perhaps you should try some spelling variations:
hien hanh » dieu hanh
tranh cua » doanh cua, manh cua
trong van » trong cac
cua hang » cua dang, cua nhung, cua cong
cong van » cong vang, cong san, song van
cong tan » cong tac, cong san, cong thanh
can ban » van ban, toan 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 hien hanh - canh tranh cua hang ((((cong van) or (cong tan))) or (trong van)) can ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - canh tranh cua hang ((((cong van) OR (cong tan))) OR (trong van)) can ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - canh tranh cua hang ((((cong van) or (cong tan))) or (trong van)) can ban*.