Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
thanh trong » thanh trung, tranh trong, hanh trong
canh doanh » hanh doanh, doanh doanh, kinh doanh
hoc thien » hoc hien, hoc thieu, hoc thiet
thien anh » thien danh, tien anh, thien thanh
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van 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 thien anh - ((canh doanh) or (chinh doanh)) thanh trong cong tan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien anh - ((canh doanh) OR (chinh doanh)) thanh trong cong tan phan tu.
• Adding a wildcard symbol may retrieve word variants: hoc thien anh - ((canh doanh) or (chinh doanh)) thanh trong cong tan phan tu*.