Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong luan » tong luan, cong tuan, dong luan
chao cuu » cham cuu, khao cuu, cap cuu
chao chu » cho chu, cua chu, cao cho
anh bang » anh hoang, anh quang, tinh bang
anh son » anh dong, tinh son

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((chao cuu) OR (chao chu)) van - ((anh son) OR (anh bang)) cua nhung cong luan van ban~.
• Adding a wildcard symbol may retrieve word variants: ((chao cuu) or (chao chu)) van - ((anh son) or (anh bang)) cua nhung cong luan van ban*.