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 sac » tu sach, tu cac, tu san
sac ky » cac ky, sai 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 sac ky dang xay hoi. ((hieu va) OR (lieu va)) nham thuoc ban hanh vai cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac 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 sac ky dang xay hoi. ((hieu va) OR (lieu va)) nham thuoc ban hanh vai cua viet*.