Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
sach thu » sach thue, sach thieu, sach tham
van hanh » van thanh, ban hanh, van anh
tai cuu » tai cuc, tai buu, tai cua
xuc van » duc van, luc van, vuc van
nang ho » nang hoc, nang co, tang ho
sach ty » sach y, sach tu, xach tay
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
ho hoi » hoc hoi, hoa hoi, hoi hoi

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) OR (sach thu)) nang ho hoi. hieu ((ve cam) OR (va cam)) xuc van hanh tai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach thu)) nang ho hoi. hieu ((ve cam) or (va cam)) xuc van hanh tai cuu tre~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach thu)) nang ho hoi. hieu ((ve cam) or (va cam)) xuc van hanh tai cuu tre*.