Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nganh ky » nganh y, nganh xay, hanh ky
lang van » dang van, tang van, hoang van
hai cua » thai cua, dai cua, hoi cua
da nang » cam nang, kha nang, cao nang
va nang » van nang, cam nang, kha nang
cac duc » cac du, cao duc, cac dac
hieu va » lieu va, hieu qua
hieu ve » hieu van
van hoi » van hoa, van hoc, van hoe
ky lang » ky nang, ky dang, ky tang
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc nganh ky lang van hoi. ((hieu ve) OR (hieu va)) cac duc ((va nang) or (da nang)) hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nganh ky lang van hoi. ((hieu ve) OR (hieu va)) cac duc ((va nang) OR (da nang)) hai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc nganh ky lang van hoi. ((hieu ve) OR (hieu va)) cac duc ((va nang) or (da nang)) hai cua tre*".