Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
nang lai » nang tai, mang lai, nang cai
va cham » va chat, va tham
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cuu tre » cua tre, cau tren, cau treo
lai hoi » dai hoi, lai hoa, lai roi
y nang » ky nang, ly nang, v nang
va cam » va cao, va cai, va cau
xuc va » duc va, tuc va, luc va
vi cuu » vi luu, vinh cuu

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 y nang lai hoi. hieu ((((va cam) OR (va cham))) OR (va cac)) xuc va danh vi cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y nang lai hoi. hieu ((((va cam) OR (va cham))) or (va cac)) xuc va danh vi cuu tre~".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang lai hoi. hieu ((((va cam) OR (va cham))) or (va cac)) xuc va danh vi cuu tre*.