Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
nang mai » nang ma, nang tai, lang mai
thanh vi » hanh vi, thanh va, thanh ve
tu cach » tu cac
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
xuc ban » duc ban, cuc ban, quoc ban
y nang » ky nang, ly nang, v nang
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 cach) or (thu sach)) y nang mai hoi. hieu va cam xuc ban thanh vi cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thu sach)) y nang mai hoi. hieu va cam xuc ban thanh vi cua thuoc.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thu sach)) y nang mai hoi. hieu va cam xuc ban thanh vi cua thuoc*.