Perhaps you should try some spelling variations:
pham thuoc » pham thuc, phap thuoc, pham thuong
thuoc ban » thuoc tan, thuoc dang, thu ban
ban thanh » ban hanh, ban hang
thanh di » thanh doi, thanh de, thanh do
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
xang ma » tang ma, sang ma, rang ma
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((xang ma) OR (nang ma)) hoi. hieu va pham thuoc ban thanh di cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((xang ma) OR (nang ma)) hoi. hieu va pham thuoc ban thanh di cua tre*.