Perhaps you should try some spelling variations:
thanh luan » tranh luan, thanh xuan, thanh tuan
tong cong » trong cong, cong cong, dang cong
dung cong » dung trong
bang than » bang thanh, ban than, sang than
chu xanh » chu manh, chieu xanh, chua xang
than cau » toan cau, phan cau, than cap
cho chu » cho thue

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho chu xanh - thanh luan van ((tong cong) or (dung cong)) bang than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho chu xanh - thanh luan van ((tong cong) OR (dung cong)) bang than cau.
• Adding a wildcard symbol may retrieve word variants: cho chu xanh - thanh luan van ((tong cong) or (dung cong)) bang than cau*.