Perhaps you should try some spelling variations:
phuong toan » phong toan, phuong tran, phuong doan
dung phuong » dung thuong, bang phuong, dung chung
canh doanh » hanh doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
toan phan » thanh phan, toan ban, hoa phan
ho chieu » theo chieu, doi chieu, mot chieu
cua dung » cua dang, cua dong, qua dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) xanh - canh doanh cua dung phuong toan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - canh doanh cua dung phuong toan phan tu*.