Perhaps you should try some spelling variations:
thieu nien » thien nhien
thu sach » thuat sach, thuoc sach, thu hoach
hanh han » hanh nhan, hanh phan, hanh san
nien cac » vien cac, dien cac, bien cac
han cua » hang cua, nhan cua, than cua
va hanh » van hanh, va thanh, va danh
cac toc » cac toi, cac nuoc, cac thoi
te sach » toc sach
tu sach » su sach, tu cach, vu sach
toc va » hoc va, toc ta, tuc 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (((thu sach) OR (tu sach)))) ky nang x hoi. thieu nien cac toc va hanh han cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (((thu sach) OR (tu sach)))) ky nang x hoi. thieu nien cac toc va hanh han cua te~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (((thu sach) OR (tu sach)))) ky nang x hoi. thieu nien cac toc va hanh han cua te*.