Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
cac bac » cac bai, cac ban, cac cach
van vat » van chat, nhan vat
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
bac va » ban va, bac ha, bao va
cua te » cua tu
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: tu sach y nang x hoi. hieu va cac bac va van vat ((cua te) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang x hoi. hieu va cac bac va van vat ((cua te) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. hieu va cac bac va van vat ((cua te) or (cuu tre))*.