Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
nang cau » nang cao, hang cau, nang dau
chat xuc » chat huu, cam xuc, chao xu
cau tren » cu tren, dau tren, ca tren
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, cac cuoc
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
di cau » da cau, diem cau

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: thuoc sach ky nang cau hoi. hieu ve ((cac xuc) OR (chat xuc)) va hanh di cau tren~.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky nang cau hoi. hieu ve ((cac xuc) or (chat xuc)) va hanh di cau tren*.