Perhaps you should try some spelling variations:
nhung loi » nhung bai, nhung gi, nhung bo
muong hoc » duong hoc, tuong hoc, muong hoa
nhung bi » nhung bai, nhung gi
noi dung » hoc dung
loi luan » li luan, hoi luan, loi lan
bi luan » bai luan, li luan, bo luan
hoc mon » hoc moi, hoc mot, hoc cong
va moi » va mot, ve moi, va mo

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: (( nhung bi luan van. noi dung va moi ) OR ( nhung loi luan van. nguoi muong hoc mon ))~.
• Adding a wildcard symbol may retrieve word variants: (( nhung bi luan van. noi dung va moi ) or ( nhung loi luan van. nguoi muong hoc mon ))*.