Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hien hanh » dieu hanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
hien anh » thien anh, dien anh, tien anh
cong van » cong vang, cong san, song van
toan ban » van ban
toan cao » 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 ((hien anh) or (hien hanh)) - canh tranh cua nhung cong van ((toan ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien anh) OR (hien hanh)) - canh tranh cua nhung cong van ((toan ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hien anh) or (hien hanh)) - canh tranh cua nhung cong van ((toan ban) or (toan cao))*.