Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
hanh luan » khanh luan, hang luan, hanh luat
dung cong » dung trong
chu xanh » chieu xanh, chua xang, chuc danh
chu manh » ho manh, chu han, chu van
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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: theo ((chu xanh) OR (chu manh)) - hanh luan van ((nhung tuong) OR (dung cong)) dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) OR (chu manh)) - hanh luan van ((nhung tuong) or (dung cong)) dan than cau~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) OR (chu manh)) - hanh luan van ((nhung tuong) or (dung cong)) dan than cau*.