Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
thuat bang » thuat ban, thuat mang, thuat nang
hien sach » kien sach, thien hach, chieu sach
dien sach » dien anh
bang cong » dang cong, bang song, hang 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 trinh) OR (canh tranh)) thuat bang cong san hang cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien sach) OR (dien sach)) - ((hanh trinh) OR (canh tranh)) thuat bang cong san hang cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien sach) or (dien sach)) - ((hanh trinh) OR (canh tranh)) thuat bang cong san hang cap".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien sach) or (dien sach)) - ((hanh trinh) OR (canh tranh)) thuat bang cong san hang cap*.