Perhaps you should try some spelling variations:
chuong duong » cuong duong, tuong duong, cuong dung
luan chuong » luan chung, luan phuong, luat thuong
hieu nganh » vien nganh, hiem ngan, nghiep nganh
thanh tong » thanh cong, thanh tung, thanh long
hieu manh » chieu xanh, dieu hanh, hien hanh
tong luan » tang luan, dung luan, hang luan
van than » van thanh, van thang, van tuan
dan chan » dan gian, dan ca, van chat

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: doc ((hieu nganh) OR (hieu manh)) - thanh tong luan chuong duong ((van than) OR (dan chan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu nganh) OR (hieu manh)) - thanh tong luan chuong duong ((van than) or (dan chan)) cau~".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu nganh) OR (hieu manh)) - thanh tong luan chuong duong ((van than) or (dan chan)) cau*.