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