Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
ma khoi » mai khoi, ra khoi, xa khoi
van tri » van tai, van thi, van toi
va cau » van cau, va cac, va dau
xuc va » tuc va, luc va, xac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky tang ma khoi. lieu va cau ((xuc va) or (duc va)) van tri cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky tang ma khoi. lieu va cau ((xuc va) OR (duc va)) van tri cua thuoc.
• Adding a wildcard symbol may retrieve word variants: so sach ky tang ma khoi. lieu va cau ((xuc va) or (duc va)) van tri cua thuoc*.