Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
va dan » ca dan, va dau, va dap
va dao » ca dao
le cua » ly 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: nuoc sach y nang x hoi. hieu va cam luc ((va dan) or (va dao)) le cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc sach y nang x hoi. hieu va cam luc ((va dan) OR (va dao)) le cua tre.
• Adding a wildcard symbol may retrieve word variants: nuoc sach y nang x hoi. hieu va cam luc ((va dan) or (va dao)) le cua tre*.