Perhaps you should try some spelling variations:
thanh tay » thanh tai, thanh toan, thanh thuy
danh cac » dinh cac, danh ca, hanh cac
hien nam » phien nam, hien nay, mien nam
vien nam » vien dai, hien nay, vien da
canh tac » canh giac, cong tac, anh ta
canh tay » anh ta, ban tay
vang hoc » nang hoc, vung hoc, bang hoc
hoc viet » hoc hien
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 cac van hoc ((hien nam) or (((vien nam) or (van nam)))) ) or ( ((canh tac) or (((canh tay) OR (thanh tay)))) vang hoc viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( danh cac van hoc ((hien nam) OR (((vien nam) OR (van nam)))) ) OR ( ((canh tac) OR (((canh tay) OR (thanh tay)))) vang hoc viet nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( danh cac van hoc ((hien nam) or (((vien nam) or (van nam)))) ) or ( ((canh tac) or (((canh tay) OR (thanh tay)))) vang hoc viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (( danh cac van hoc ((hien nam) or (((vien nam) or (van nam)))) ) or ( ((canh tac) or (((canh tay) OR (thanh tay)))) vang hoc viet nam ))*.