Perhaps you should try some spelling variations:
nghe dinh » nghe sinh, nghi dinh, nghe danh
nghen cuu » nghien cuu, nguyen cuu
qua trinh » qua kinh
dung phap » dung phan, dung phat, dung php
dinh hoc » sinh hoc, hinh hoc, tinh hoc
hoc khoa » hoc pho
nghe cua » nghiep cua, nghe va, nghe che

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

• Performing a fuzzy search may retrieve terms with similar spellings: cong nghe dinh hoc khoa luan ((nghen cuu) or (nghe cua)) qua trinh dung phap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cong nghe dinh hoc khoa luan ((nghen cuu) OR (nghe cua)) qua trinh dung phap.
• Adding a wildcard symbol may retrieve word variants: cong nghe dinh hoc khoa luan ((nghen cuu) or (nghe cua)) qua trinh dung phap*.