Perhaps you should try some spelling variations:
doanh phan » doanh nhan, doan phan, doanh thanh
tranh khoa » trinh khoa, tran khoa, doanh khoa
luan tieu » luan thiet
phan hien » phat hien, phan kien, phan bien
luan ket » lien ket
ket luan » ket qua, te luan, dat luan
tieu qua » hieu qua, lieu quan, hieu quan
kinh » dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (canh OR can) tranh khoa luan ket luan tieu qua kinh doanh phan hien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(canh OR can) tranh khoa luan ket luan tieu qua kinh doanh phan hien".
• Adding a wildcard symbol may retrieve word variants: (canh OR can) tranh khoa luan ket luan tieu qua kinh doanh phan hien*.