Perhaps you should try some spelling variations:
nhung thoi » nhung thi, phung thi, nhung tri
nhung loi » nhung bai, nhung bi, nhung gi
dung quoc » dang quoc, dong quoc, trung quoc
loi luan » li luan, hoi luan, loi lan
noi dung » hoc dung
noi dong » hoi dong, noi cong, noi tong
dong hoc » dong co, dong luc
luan va » luan van, luat va
quoc lo » quoc co, quoc o, quoc so
quen va » quan va, que va, quyen van
hoc mo » hoc moi, hoc mot, hoc mon

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( nhung loi luan va. noi dung quoc lo ) or ( nhung thoi quen va. noi dong hoc mo ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung loi luan va. noi dung quoc lo ) OR ( nhung thoi quen va. noi dong hoc mo )).
• Adding a wildcard symbol may retrieve word variants: (( nhung loi luan va. noi dung quoc lo ) or ( nhung thoi quen va. noi dong hoc mo ))*.