Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
canh doanh » hanh doanh, chinh doanh, kinh doanh
hien xanh » hien hanh, hien nhanh, chieu xanh
dung hang » dung thang, dung khang, dung dang
cua dung » cua dang, cua dong, qua dung
quan cau » quang cao, toan cau, quan ha
va quan » van quan, tac quan, hai quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - ((canh doanh) or (doanh doanh)) cua dung hang va quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((canh doanh) OR (doanh doanh)) cua dung hang va quan cau*.