Perhaps you should try some spelling variations:
nghien nam » nghiep nam, nguyen nam, nghe nam
moc nghien » hoc nghien, duc nghien, men nghien
phien nam » hien nay, phien ban, mien nam
hoc vien » hoc hien, hoc viet, hoc tieng
danh cac » dinh cac, danh ca, hanh cac
vung moc » dung mo, dung moi, dung mot
danh tac » canh tac, danh bac, doanh tai
tac vung » tac dung, tac vang, tay vung
dung hoc » dong hoc, dung thuoc, trung hoc
vung hoc » trung hoc, quang hoc, chung hoc
vien nam » viet nam, vien dai, van nam
cac van » cac dan
van hoc » van hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((( danh tac ((vung hoc) OR (dung hoc)) phien nam ) or ((( danh tac ((vung hoc) OR (dung hoc)) nghien nam ) or ( danh tac vung moc nghien nam ))))) or ( danh cac van hoc vien nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( danh tac ((vung hoc) OR (dung hoc)) phien nam ) OR ((( danh tac ((vung hoc) OR (dung hoc)) nghien nam ) OR ( danh tac vung moc nghien nam ))))) OR ( danh cac van hoc vien nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( danh tac ((vung hoc) OR (dung hoc)) phien nam ) or ((( danh tac ((vung hoc) OR (dung hoc)) nghien nam ) or ( danh tac vung moc nghien nam ))))) or ( danh cac van hoc vien nam ))".
• Adding a wildcard symbol may retrieve word variants: (((( danh tac ((vung hoc) OR (dung hoc)) phien nam ) or ((( danh tac ((vung hoc) OR (dung hoc)) nghien nam ) or ( danh tac vung moc nghien nam ))))) or ( danh cac van hoc vien nam ))*.