Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
mang xa » lang xa, mang may, dang xay
nang ma » tang ma, sang ma, nang cao
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y ((mang xa) or (nang ma)) hoi. lieu va cam xuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((mang xa) OR (nang ma)) hoi. lieu va cam xuc va hanh vi cua tre*.