Perhaps you should try some spelling variations:
nhung doanh » nhung danh, dung doanh, nhung don
hang doanh » hanh doanh, van doanh, dung doanh
hien xanh » hien hanh, hien nhanh, chieu xanh
han huong » han thuong, han phuong, ban huong
luan han » luan hoan, luan phan, luan van
gian cau » gian chau, gian cac, gian cam

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((hang doanh) OR (nhung doanh)) luan han huong dan gian cau~".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((hang doanh) OR (nhung doanh)) luan han huong dan gian cau*.