Perhaps you should try some spelling variations:
quans vi » quan vi, quan li, quan va
so sach » so sanh, bo sach, co sach
cau tuc » cau truc, cau tu, cau luc
tuc van » thuc van, truc van, tuc va
tuan vi » quan vi, luan vi, tuan tai
cuu tre » cua tre, cau tren, cau treo
y nang » ly nang, v nang, may nang
va cau » van cau, va cac, va dau
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: so sach ((y nang) or (ky nang)) x hoi. lieu va cau tuc van ((tuan vi) or (quans vi)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((y nang) OR (ky nang)) x hoi. lieu va cau tuc van ((tuan vi) OR (quans vi)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: so sach ((y nang) or (ky nang)) x hoi. lieu va cau tuc van ((tuan vi) or (quans vi)) cuu tre*.