Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
sach tu » sach thu, cach tu, sach ty
cua tre » cua te, cuu tre, cua triet
nang xa » lang xa, nang ma, mang xa
loc va » hoc va, luc va
vi cua » vai cua, di cua
ve cam » ve cham, ve cac, va cam

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 tu ((nang xa) OR (nang x)) hoi. hieu ((ve cam) OR (va cham)) loc va hanh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach tu ((nang xa) or (nang x)) hoi. hieu ((ve cam) or (va cham)) loc va hanh vi cua tre*.