Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
tang ha » lang ha, tang ma, trung ha
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
ha hoi » hoa hoi, ha noi, xa hoi
va cam » va cham, va cac, va cao
vi cua » vai cua, di cua

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: su sach ky tang ha hoi. hieu va cam ((truc va) OR (duc va)) hanh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: su sach ky tang ha hoi. hieu va cam ((truc va) or (duc va)) hanh vi cua tre*.