Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
xuan trang » xuan trung, xuan truong, quan trong
cuong doan » cong doan, phuong doan, cuong quan
luan tang » luan nang, lan tang, luan thanh
ho chiet » ho thiet, hoc thiet, hoa thiet
ho chieu » theo chieu, hoc thieu, doi chieu
doan van » doan va, hoang van, luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chiet) or (ho chieu)) tach - thanh dung ((luan tang) OR (xuan trang)) cuong doan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (ho chieu)) tach - thanh dung ((luan tang) OR (xuan trang)) cuong doan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) or (ho chieu)) tach - thanh dung ((luan tang) OR (xuan trang)) cuong doan van ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) or (ho chieu)) tach - thanh dung ((luan tang) OR (xuan trang)) cuong doan van ban*.