Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
te sach » toc sach
va hanh » van hanh, va thanh, va danh
cau luc » cau truc, cau phuc
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
nang xa » lang xa, mang xa, ang xa
nang ma » tang ma, sang ma, nang cao
ve cau » ke cau, va cau, ve cac
luc va » duc va, tuc va, loc va
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: te sach thu ((((nang xa) OR (nang ma))) OR (nang x)) hoi. hieu ve cau luc va hanh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: te sach thu ((((nang xa) or (nang ma))) or (nang x)) hoi. hieu ve cau luc va hanh vi cua tre*.