Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
hieu va » lieu va, hieu qua
cau luc » cau truc, cau phuc
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va cau » van cau, va cac, va dau
luc va » duc va, tuc va, loc va
va dan » ca dan, va dao, va dau
dan ve » ban ve, dan va, dan viet
ve cua » le cua, de cua, te cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach y nang x hoi. hieu va cau luc va dan ve cua tre~.
• Adding a wildcard symbol may retrieve word variants: hoc sach y nang x hoi. hieu va cau luc va dan ve cua tre*.