Perhaps you should try some spelling variations:
hoc phien » hoc hien, thuoc phien, hoc nghien
phien nam » hien nay, phien ban, vien nam
danh tac » canh tac, danh bac, doanh tai
tac vung » tac dung, tac vang, tay vung
vung hoc » dung hoc, vung moc, trung hoc
danh cac » dinh cac, danh ca, dan cac
hoc vien » hoc hien, hoc viet, hoc tieng
vien dai » hien dai
hanh cac » hang cac, hanh cat, nhanh cay
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 phien nam ) or ((( danh cac van hoc vien dai ) OR ( hanh cac van hoc vien dai ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( danh tac vung hoc phien nam ) OR ((( danh cac van hoc vien dai ) OR ( hanh cac van hoc vien dai )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( danh tac vung hoc phien nam ) or ((( danh cac van hoc vien dai ) OR ( hanh cac van hoc vien dai ))))".
• Adding a wildcard symbol may retrieve word variants: (( danh tac vung hoc phien nam ) or ((( danh cac van hoc vien dai ) OR ( hanh cac van hoc vien dai ))))*.