Perhaps you should try some spelling variations:
hoc phien » thuoc phien, hoc nghien, hoc phan
vung hoc » dung hoc, vung moc, trung hoc
canh cac » hanh cac, canh giac, canh chau
phan van » pham van, thanh van, luan van
phan ban » phan banh, phan ba, phan bon
danh tac » danh bac, doanh tai, danh thuc
tac vung » tac dung, tac vang, tay vung
canh tac » canh tay, canh giac, cong tac
hien nam » phien nam, hien nay, vien nam
cac van » cac dan
van hoc » van hoa
tac va » tac da, tac xa, tuc va

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 va hoc hien nam ) or ((( canh tac vung hoc ((phan ban) OR (phan van)) ) or ( canh cac van hoc phien ban ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( danh tac va hoc hien nam ) OR ((( canh tac vung hoc ((phan ban) OR (phan van)) ) OR ( canh cac van hoc phien ban )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( danh tac va hoc hien nam ) or ((( canh tac vung hoc ((phan ban) OR (phan van)) ) or ( canh cac van hoc phien ban ))))".
• Adding a wildcard symbol may retrieve word variants: (( danh tac va hoc hien nam ) or ((( canh tac vung hoc ((phan ban) OR (phan van)) ) or ( canh cac van hoc phien ban ))))*.