Perhaps you should try some spelling variations:
doanh xuan » doanh luan, doanh xuat, doan xuan
xuan thang » xuan thanh, xuan trang, quan thanh
thang dung » thong dung, thanh dung, thanh duong
hoc thieu » hoc hien
van doanh » toan doanh, van dong, van thanh
dung data » dung dat, dung dan, dung danh
data phan » dam phan, sat phan, vat phan

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) or (toc thieu)) sang - van doanh xuan thang dung data phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) sang - van doanh xuan thang dung data phan tu*.