Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, ang xa
mang xa » lang xa, mang may, dang xay
van cam » van nam, van lam, van cau
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
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 ky ((((nang xa) or (mang xa))) or (nang x)) hoi. hieu van cam xuc van hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((((nang xa) OR (mang xa))) OR (nang x)) hoi. hieu van cam xuc van hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((((nang xa) or (mang xa))) or (nang x)) hoi. hieu van cam xuc van hanh vi cua tre*.