Perhaps you should try some spelling variations:
chiet tach » chieu sach
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh luan » tranh luan, thanh xuan, thanh tuan
nhung cong » dung cong, thong cong, hang cong
van nhung » van nhuong, va nhung, van hung
cong tap » cuong tap, cong tac, cong tan
tap phan » tai phan, cap phan, tap pham
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (((chinh sach) or (chiet tach)))) - thanh luan van nhung cong tap phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (((chinh sach) OR (chiet tach)))) - thanh luan van nhung cong tap phan dau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (((chinh sach) or (chiet tach)))) - thanh luan van nhung cong tap phan dau*.