Perhaps you should try some spelling variations:
hien sach » kien sach, thien hach, chieu sach
dien sach » dien anh
thuat ban » thuat bai, thuat bao, thuat san
ban cong » bang cong, van cong, phan cong
cong san » cong tac
san hang » san chang, ban hang, van hang
hang cap » hang ca, hang cau, hang cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien sach) or (dien sach)) - ((hanh chinh) or (canh tranh)) thuat ban cong san hang cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien sach) OR (dien sach)) - ((hanh chinh) OR (canh tranh)) thuat ban cong san hang cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien sach) or (dien sach)) - ((hanh chinh) or (canh tranh)) thuat ban cong san hang cap*.