Perhaps you should try some spelling variations:
thien van » thi van
hanh lai » hanh lam, hanh tai, thanh lap
pham duy » pham duc
van pham » san pham, van phan, van phat
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
mang xa » lang xa, mang may, dang xay
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
duy va » duy vat, duy van, day va

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: ((toc sach) OR (hoc sach)) y ((mang xa) OR (nang x)) hoi. thien van pham duy va hanh lai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (hoc sach)) y ((mang xa) or (nang x)) hoi. thien van pham duy va hanh lai cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) OR (hoc sach)) y ((mang xa) or (nang x)) hoi. thien van pham duy va hanh lai cua tre*.