Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
luc van » luoc van, luu van, duc van
xuc van » duc van, vuc van, xuc ban
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua
va co » vo co

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty ((nang xa) OR (lang xa)) hoi. hieu va co ((xuc van) OR (luc van)) hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty ((nang xa) OR (lang xa)) hoi. hieu va co ((xuc van) OR (luc van)) hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ty ((nang xa) OR (lang xa)) hoi. hieu va co ((xuc van) OR (luc van)) hanh vi cua tre*.