Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
tieu sach » chieu sach, dien sach, te sach
van thanh » ban thanh, van tuan
hang cong » dang cong, hang nong, bang cong
cua hang » cua dang, cua nhung, cua cong
tac nhan » cac nhan, dac nhan, tan nhan
tao nhan » ca nhan, tue nhan, tri nhan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - ((hanh doanh) OR (van thanh)) cua hang cong ((tac nhan) OR (tao nhan)) tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - ((hanh doanh) or (van thanh)) cua hang cong ((tac nhan) OR (tao nhan)) tap~".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - ((hanh doanh) or (van thanh)) cua hang cong ((tac nhan) OR (tao nhan)) tap*.