Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach tu » sach thu, cach tu, sach ty
va hanh » van hanh, va thanh, va danh
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
hieu ve » hieu van
tang ma » mang may, tang van
tu tang » tuc tang, tu trang, tu tong
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
va dan » ca dan, va dao, va dau

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 tu tang ma hoi. ((hieu ve) OR (hieu va)) cac xuc ((va hanh) OR (va dan)) dai cua tre~.
• Adding a wildcard symbol may retrieve word variants: su sach tu tang ma hoi. ((hieu ve) or (hieu va)) cac xuc ((va hanh) or (va dan)) dai cua tre*.