Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
nhung dung » phuong dung, ung dung, thong dung
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - hanh tang cua ((nhung tuong) or (nhung dung)) dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh tang cua ((nhung tuong) OR (nhung dung)) dan van ban*.