Perhaps you should try some spelling variations:
"cong trinh luan van thi cong phan thuong" » "cong trinh luan van thi cong hang thuong", "cong trinh luan van thi cong phan xuong", "cong trinh quan van thi cong phan thuong", "cong trinh han van thi cong phan thuong", "cong trinh toan van thi cong phan thuong", "cong trinh luan van thi cong nhan thuong", "cong trinh luan van thi cong khan thuong", "cong trinh luan van thi chong phap thuong", "cong trinh luan van tai cong phan thuong", "cong trinh luan van thien cong phan thuong", "cong trinh luan van thu cong phan thuong", "cong trinh luan tran thi cong phan thuong"
"cong trinh luat dan thi cong nhat thuong" » "cong trinh luat dan thi cong nhat huong", "cong trinh luat dan thi cong luat thuong", "cong trinh luat dan thi cong pham thuong", "cong trinh luat dan thi cong nhan thuong", "cong trinh luat dan thi cong ha thuong", "cong trinh luat dan thi cong suat thuong", "cong trinh luat dan tai cong nhat thuong", "cong trinh luat dan thien cong nhat thuong", "cong trinh luat dat thi cong nhat thuong", "cong trinh luat doanh thi cong nhat thuong", "cong trinh cua dan thi cong nhat thuong", "cong trinh luat dang thi cong nhat thuong", "cong trinh luat tran thi cong nhat thuong", "cong trinh luat dinh thi cong nhat thuong"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("cong trinh luan van thi cong phan thuong") or ("cong trinh luat dan thi cong nhat thuong"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("cong trinh luan van thi cong phan thuong") OR ("cong trinh luat dan thi cong nhat thuong")).
• Removing quotes may allow a broader search: (( cong trinh luan van thi cong phan thuong ) or ( cong trinh luat dan thi cong nhat thuong )).
• Adding a wildcard symbol may retrieve word variants: (("cong trinh luan van thi cong phan thuong") or ("cong trinh luat dan thi cong nhat thuong"))*.