Perhaps you should try some spelling variations:
nghien nam » nghiep nam, nguyen nam, nghe nam
hoc phien » hoc hien, thuoc phien, hoc nghien
phien nam » hien nay, phien ban, mien nam
hanh cac » hang cac, hanh cat, nhanh cay
cac vung » cac ung, cac chung, cach dung
vien nam » viet nam, vien dai, van nam
hoc vien » hoc hien, hoc viet, hoc tieng
dinh cac » tinh cach, dinh chuc, dinh chau
vung moc » dung mo, dung moi, dung mot
danh tac » canh tac, danh bac, doanh tai
vung hoc » dung hoc, trung hoc, quang hoc
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: (((( hanh cac vung hoc phien nam ) or ( danh tac ((vung moc) or (dung cho)) nghien nam ))) or ((( hanh cac van hoc vien nam ) or ( dinh cac van hoc vien nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( hanh cac vung hoc phien nam ) OR ( danh tac ((vung moc) OR (dung cho)) nghien nam ))) OR ((( hanh cac van hoc vien nam ) OR ( dinh cac van hoc vien nam )))).
• Adding a wildcard symbol may retrieve word variants: (((( hanh cac vung hoc phien nam ) or ( danh tac ((vung moc) or (dung cho)) nghien nam ))) or ((( hanh cac van hoc vien nam ) or ( dinh cac van hoc vien nam ))))*.