Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
lang ha » long ha
lang xa » dang xay, lang van
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va

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: su sach ty ((((lang xa) OR (lang ha))) OR (nang x)) hoi. hieu va cam xuc va thanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((((lang xa) OR (lang ha))) or (nang x)) hoi. hieu va cam xuc va thanh dai cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((((lang xa) OR (lang ha))) or (nang x)) hoi. hieu va cam xuc va thanh dai cua tre*.