Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
canh doanh » hanh doanh, chinh doanh, kinh doanh
hien manh » hien hanh, tien manh, hieu manh
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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 manh - ((canh doanh) or (doanh doanh)) ((cua nhung) OR (va nhung)) cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien manh - ((canh doanh) OR (doanh doanh)) ((cua nhung) OR (va nhung)) cong dan phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien manh - ((canh doanh) or (doanh doanh)) ((cua nhung) OR (va nhung)) cong dan phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc hien manh - ((canh doanh) or (doanh doanh)) ((cua nhung) OR (va nhung)) cong dan phan cau*.