Perhaps you should try some spelling variations:
nhuong cong » nhung cong, duong cong, thong cong
thanh luan » tranh luan, thanh xuan, thanh tuan
luong cong » dung cong, trong cong, cong cong
vang thanh » van thanh, dang thanh, tang thanh
tieu xanh » tieu danh, chieu xanh, dieu hanh
thanh cau » thanh chau, thanh mau, nhanh cau

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 - thanh luan van ((nhuong cong) or (luong cong)) vang thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - thanh luan van ((nhuong cong) OR (luong cong)) vang thanh cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh luan van ((nhuong cong) or (luong cong)) vang thanh cau*.