Perhaps you should try some spelling variations:
nham thuoc » nha thuoc, nam thuoc, nham thuc
thuoc ban » thuoc tan, thuoc dang, thu ban
dang xay » dang van, van xay
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
cua viet » ca viet, hoa viet, cua vat
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » hieu qua
vai cua » dai cua, hai cua, lai cua
tu sai » tu bai, tu san, tu cai
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky dang xay hoi. ((hieu va) or (lieu va)) nham thuoc ban hanh vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky dang xay hoi. ((hieu va) OR (lieu va)) nham thuoc ban hanh vai cua viet.
• Adding a wildcard symbol may retrieve word variants: tu sai ky dang xay hoi. ((hieu va) or (lieu va)) nham thuoc ban hanh vai cua viet*.