Perhaps you should try some spelling variations:
sach kem » hanh kem
hanh dai » hanh tai, hanh dao, vanh dai
va hanh » van hanh, va thanh, va danh
truc va » thuc va, thuc vat, trung va
vat hau » van hau, hat chau, vat chat
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
va hau » van hau, va chau, 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: tu ((sach kem) OR (sac ky)) nang xa hoi. hieu ((va hau) OR (vat hau)) truc va hanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach kem) or (sac ky)) nang xa hoi. hieu ((va hau) OR (vat hau)) truc va hanh dai cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach kem) or (sac ky)) nang xa hoi. hieu ((va hau) OR (vat hau)) truc va hanh dai cua tre*.