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