Perhaps you should try some spelling variations:
nhung thoi » nhung thi, phung thi, nhung loi
nhung tri » nhung bai, dung tri, nhung bi
boi duong » hai duong, doi tuong, con duong
duong hoc » dong hoc, dung hoc, duong hoi
quen vang » que van, que lang, quen hanh
tri quan » trinh quan, hai quan, mai quan
quan van » luan van, quan va, quan luan
hoc mon » hoc moi, hoc mot, hoc cong
co mon » co don, co lon, co mo
dong » cong, dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( nhung tri quan van. boi duong hoc mon ) or ( nhung thoi quen vang. hoat dong co mon ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung tri quan van. boi duong hoc mon ) OR ( nhung thoi quen vang. hoat dong co mon )).
• Adding a wildcard symbol may retrieve word variants: (( nhung tri quan van. boi duong hoc mon ) or ( nhung thoi quen vang. hoat dong co mon ))*.