Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
canh doanh » hanh doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
dong cang » dong bang, dong cung, dong nang
dong cong » duong cong, dung cong, dang cong
thang ban » hang ban, tang ban, thanh ban
ban can » ban dan, ban hang, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - canh doanh cua ((dong cang) or (dong cong)) thang ban can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - canh doanh cua ((dong cang) OR (dong cong)) thang ban can*.