Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
thanh di » thanh doi, thanh de, thanh do
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
van cam » van nam, van lam, van cau
xuc van » duc van, vuc van, xuc ban
luc van » luoc van, luu van, duc van
di cua » dai cua, doi cua, de cua

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: thu sach ky tang xa hoi. hieu van cam ((xuc van) OR (luc van)) thanh di cua vat~.
• Adding a wildcard symbol may retrieve word variants: thu sach ky tang xa hoi. hieu van cam ((xuc van) or (luc van)) thanh di cua vat*.