Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, cong trinh, cong tan
chuc danh » chuc nganh, thuc hanh, chuc nang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
thanh van » thanh san, thanh toan, thanh phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao ((chuc danh) or (chieu sach)) - canh tranh cua nhung cong thanh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chuc danh) OR (chieu sach)) - canh tranh cua nhung cong thanh van ban*.