Perhaps you should try some spelling variations:
van duong » van dong, van dung, van phong
phung tri » phung thi, nhung tri, phong tri
duong hoc » dong hoc, duong hoi, duong ho
bai quan » hai quan, ban quan, mai quan
noi dung » hoc dung
dung hoc » dong hoc, dung thuoc, trung hoc
tri quan » trinh quan, hai quan, mai quan
hoc mon » hoc moi, hoc mot, hoc cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( nhung bai quan luan. noi dung hoc mon ) or ( phung tri quan luan. van duong hoc mon ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung bai quan luan. noi dung hoc mon ) OR ( phung tri quan luan. van duong hoc mon )).
• Adding a wildcard symbol may retrieve word variants: (( nhung bai quan luan. noi dung hoc mon ) or ( phung tri quan luan. van duong hoc mon ))*.