Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
hoc nhanh » hoc nganh, hoc phan
nhanh ky » hanh ky, nhan ky, nganh ky
va thanh » gia thanh, ban thanh, va tinh
ky lang » ky nang, ky dang, ky tang
hieu va » lieu va, hieu qua
cac duc » cac du, cao duc, cac dac
cua tre » cuu tre, cua triet, dua tren
cua te » cua tu

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nhanh ky lang ((van hoc) OR (van hoa)). hieu va cac duc va thanh hai ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc nhanh ky lang ((van hoc) or (van hoa)). hieu va cac duc va thanh hai ((cua tre) OR (cua te))~".
• Adding a wildcard symbol may retrieve word variants: hoc nhanh ky lang ((van hoc) or (van hoa)). hieu va cac duc va thanh hai ((cua tre) OR (cua te))*.