Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
bang cong » dang cong, bang song, hang cong
tac thanh » bac thanh, cac thanh, tcc thanh
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
van tuan » van quan, van ban, anh tuan
cua bang » chua bang, cua ban, cua dang
tac than » tam than, tac nhan, bac thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - ((hanh doanh) or (van tuan)) cua bang cong ((tac than) or (tac thanh)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - ((hanh doanh) OR (van tuan)) cua bang cong ((tac than) OR (tac thanh)) tap.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - ((hanh doanh) or (van tuan)) cua bang cong ((tac than) or (tac thanh)) tap*.