Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
tai cuu » tai cuc, tai buu, tai cua
xuc van » duc van, luc van, vuc van
cuu tre » cua tre, cau tren, cau treo
ban khi » bang khi, ban thi, ban chi
van khi » van chi, van nhi, van khoa
ky lang » ky nang, ky dang, ky tang
va cam » va cham, va cac, va cao
ve cai » va cai, ve cac, ve tai

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 ky lang ((van khi) OR (ban khi)). hieu ((ve cai) OR (va cam)) xuc van hanh tai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang ((van khi) OR (ban khi)). hieu ((ve cai) or (va cam)) xuc van hanh tai cuu tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky lang ((van khi) OR (ban khi)). hieu ((ve cai) or (va cam)) xuc van hanh tai cuu tre*.