Perhaps you should try some spelling variations:
tien manh » tien anh, tien thanh, tieng anh
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua hang » cua nhung, cua cong, cua ban
cua dang » cua cong, cua ban
nong dan » cong dan, nong san, nguong dan
dan phan » doan phan, dan chan, van phan
phan cac » nhan cach, phan dau, phan lap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien manh) OR (hieu manh)) - canh tranh ((cua hang) OR (cua dang)) nong dan phan cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tien manh) or (hieu manh)) - canh tranh ((cua hang) OR (cua dang)) nong dan phan cac~".
• Adding a wildcard symbol may retrieve word variants: hoc ((tien manh) or (hieu manh)) - canh tranh ((cua hang) OR (cua dang)) nong dan phan cac*.