Perhaps you should try some spelling variations:
xuat ban » luat ban, xuat san, thuat ban
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
cuc ban » cua ban, cac ban, cuu ban
cua tre » cua te, cuu tre, cua triet
ty nang » ky nang, ty xang, ty hang
ve cam » ve cham, ve cac, ve cai
anh de » hanh de, anh d, anh ve
de cua » le cua, te cua, dieu cua
va cam » va cham, va cac, va cao
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: tu sach ty nang x hoi. hieu ((ve cam) OR (va cam)) ((xuat ban) OR (cuc ban)) anh de cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang x hoi. hieu ((ve cam) OR (va cam)) ((xuat ban) or (cuc ban)) anh de cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang x hoi. hieu ((ve cam) OR (va cam)) ((xuat ban) or (cuc ban)) anh de cua tre*.