Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
van thanh » ban thanh, van tuan
cua thuoc » nha thuoc, cay thuoc, cua nuoc
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, te sach
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thuoc sach)) ky tang ma hoi. hieu va cam xuc van thanh vi cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuoc sach)) ky tang ma hoi. hieu va cam xuc van thanh vi cua thuoc.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuoc sach)) ky tang ma hoi. hieu va cam xuc van thanh vi cua thuoc*.