Perhaps you should try some spelling variations:
ban thanh » ban hang
ban hanh » ban hang
te sach » toc sach
cac xuc » cam xuc, cac nuoc, chat xuc
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
mang xa » lang xa, mang may, dang xay
di cua » dai cua, doi cua, de cua
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty ((mang xa) or (nang x)) hoi. hieu ve cac xuc ((ban thanh) or (ban hanh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((mang xa) OR (nang x)) hoi. hieu ve cac xuc ((ban thanh) OR (ban hanh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ty ((mang xa) or (nang x)) hoi. hieu ve cac xuc ((ban thanh) or (ban hanh)) di cua tre*.