Perhaps you should try some spelling variations:
nhung hoi » nhung thoi, nhung loi, nhung noi
trung hoc » trung quoc
hoc trung » hoc truong, hoc trong, hoc thuong
doi tuong » moi truong, doi song
tuong hoc » truong hoc, tuong ho, duong hoc
quy van » duy van, qua van, quyet van
thi quy » tai quy, thien quy, thi quynh
hoc moi » hoc noi
hoc mo » hoc mot, hoc mon, hoc ma
ky va » ly va, my va, ky la
ke va » te va

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( nhung hoi ((ky va) OR (ke va)). doi tuong hoc moi ) or ( phung thi quy van. hoc trung hoc mo ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung hoi ((ky va) OR (ke va)). doi tuong hoc moi ) OR ( phung thi quy van. hoc trung hoc mo ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( nhung hoi ((ky va) OR (ke va)). doi tuong hoc moi ) or ( phung thi quy van. hoc trung hoc mo ))*".