Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
nam thuc » nam thuoc, am thuc, nam thu
vai cuu » vai cua
cam tuc » cam xuc, cam tu, dam thuc
cuu tre » cua tre, cau tren, cau treo
ty hang » ly hang, ty xang, thi hang
hieu ve » hieu va, hieu van
su sach » so sach, vu sach
hang x » nang x, hoang xa, chang xu
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) or (su sach)) ty hang x hoi. hieu ve ((cam tuc) or (nam thuc)) ban hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (su sach)) ty hang x hoi. hieu ve ((cam tuc) OR (nam thuc)) ban hanh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (su sach)) ty hang x hoi. hieu ve ((cam tuc) or (nam thuc)) ban hanh vai cuu tre*.