Perhaps you should try some spelling variations:
thanh luan » tranh luan, thanh xuan, thanh tuan
thong cong » trong cong, tong cong, thong thong
chau tinh » cuu tinh, ha tinh, cua tinh
van thong » van thuong, van phong, va thong
dan phan » doan phan, van phan, dam phan
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chau tinh) or (trieu tinh)) - thanh luan van thong cong ((dan phan) OR (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chau tinh) OR (trieu tinh)) - thanh luan van thong cong ((dan phan) OR (dan chan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chau tinh) or (trieu tinh)) - thanh luan van thong cong ((dan phan) OR (dan chan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chau tinh) or (trieu tinh)) - thanh luan van thong cong ((dan phan) OR (dan chan)) cau*.