Perhaps you should try some spelling variations:
hieu nganh » hiem ngan, hieu manh, nghiep nganh
vien nganh » vien thanh
nhung cong » dung cong, thong cong, hang cong
hieu xanh » chieu xanh, hieu manh, dieu hanh
cua nhung » va nhung
cong bang » cuong bang, dong bang, hong bang
bang phan » nang phan, bang nhan, bang thanh
cong cua » cong cu, dong cua, huong cua
phan dau » phan tu, hang dau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) or (((hieu nganh) OR (vien nganh)))) - thanh cong cua nhung cong bang phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (((hieu nganh) OR (vien nganh)))) - thanh cong cua nhung cong bang phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) or (((hieu nganh) OR (vien nganh)))) - thanh cong cua nhung cong bang phan dau".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (((hieu nganh) OR (vien nganh)))) - thanh cong cua nhung cong bang phan dau*.