Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
chua tre » chua tri, cua tre, chua trieu
ky tang » ky nang, ky dang, kho tang
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, duy sang
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
va chua » vua chua, ca chua, va chu
ve cac » va cac, vien cac

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: thu sach ((ky sang) OR (ky tang)) tao hoi. hieu ve cac xuc ((va hanh) OR (va danh)) va chua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ky sang) or (ky tang)) tao hoi. hieu ve cac xuc ((va hanh) OR (va danh)) va chua tre~".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ky sang) or (ky tang)) tao hoi. hieu ve cac xuc ((va hanh) OR (va danh)) va chua tre*.