Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung lang
cong tuan » cong tan, cong luan, cong thanh
nhung don » nhung van, nhung bo
dung cong » dung trong
chi sach » chinh sach, chieu sach, co sach
sat phan » sat nhan, vat phan, xuat phan
phan dau » phan tu, hang dau
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sach - thanh cong tuan ((((nhung cong) or (nhung don))) or (dung cong)) sat phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - thanh cong tuan ((((nhung cong) OR (nhung don))) OR (dung cong)) sat phan dau.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - thanh cong tuan ((((nhung cong) or (nhung don))) or (dung cong)) sat phan dau*.