[DOC] Không phải yêu cầu doc/docx. phan_4=pdf, phan_5=thong-bao-sap-nhap-hop-nhat-chia-tach-thu-vien-doi-voi-thu-vien-thuoc-co-so-giao-duc-mam-non-co-so-giao-duc-pho-thong-co-so-giao-duc-nghe-nghiep-va-co-so-giao-duc-khac-ngoai-cong-lap-thu-vien-tu-nhan-co-phuc-vu-cong-dong.html