Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
phuc van » phuc va, chuc van, khuc van
thuc van » thuc vat, thuc dan, thuc va
sach ky » sac ky, sach y, sach ty
cuu tre » cua tre, cau tren, cau treo
ve cau » ke cau, ve cac, le cau
va cau » van cau, va cac, va dau
vi cuu » vi luu, vinh cuu
x hoi » xa hoi, o hoi, x ho

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

• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc sach ky nang x hoi. hieu ((ve cau) OR (va cau)) ((phuc van) OR (thuc van)) hanh vi cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc sach ky nang x hoi. hieu ((ve cau) OR (va cau)) ((phuc van) or (thuc van)) hanh vi cuu tre~".
• Adding a wildcard symbol may retrieve word variants: nuoc sach ky nang x hoi. hieu ((ve cau) OR (va cau)) ((phuc van) or (thuc van)) hanh vi cuu tre*.