Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
sach ty » sach y, sach tu, sach thu
va cham » va chat, va tham
nang xa » lang xa, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet
va cam » va cac, va cao, va cai
loc va » hoc va, luc 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: tu sach ty ((nang xa) OR (nang x)) hoi. hieu ((va cham) OR (va cam)) loc va hanh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang xa) or (nang x)) hoi. hieu ((va cham) or (va cam)) loc va hanh vi cua tre*.