Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
cong chuc » cong thuc, cong cu, cong cua
chuc danh » chuc nganh, thuc hanh, chuc nang
danh cong » dang cong, hanh cong, anh cong
cong cong » cong dong, trong cong, dung cong
cong phan » cong nhan, cong khan, chong phap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (toc thieu)) sach - thanh cong chuc danh cong cong phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) sach - thanh cong chuc danh cong cong phan tu.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) sach - thanh cong chuc danh cong cong phan tu*.