Perhaps you should try some spelling variations:
hoc phien » thuoc phien, hoc nghien, hoc thieu
danh tac » danh bac, doanh tai, danh thuc
hien nam » phien nam, hien nay, vien nam
canh tac » canh tay, canh giac, cong tac
tac vang » tac dung, tac dong
vang hoc » nang hoc, vung hoc, bang hoc
hoc phan » hoc dan, hoc pho
phan ban » phan banh, phan van, phan ba
canh cac » hanh cac, canh giac, canh chau
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 vang hoc phan ban ) 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 vang hoc phan ban ) OR ( canh cac van hoc phien ban )))).
• Adding a wildcard symbol may retrieve word variants: (( danh tac va hoc hien nam ) or ((( canh tac vang hoc phan ban ) or ( canh cac van hoc phien ban ))))*.