Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thuoc xay » thuc xay, truoc xay, thuat xay
dau tren » dau tien, dat tren, dau tieng
nang cau » hang cau, nang dau, bang cau
hanh tai » thanh tai, hang tai, han tai
xay hanh » day nhanh, day thanh, xanh hanh
tai dau » tac dau, tai du, thi dau
lieu ha » lieu nha, liem ha, lieu ma
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 ((nang cau) OR (nang cao)) hoi. ((lieu ha) or (lieu va)) nam thuoc xay hanh tai dau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang cau) OR (nang cao)) hoi. ((lieu ha) OR (lieu va)) nam thuoc xay hanh tai dau tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((nang cau) OR (nang cao)) hoi. ((lieu ha) or (lieu va)) nam thuoc xay hanh tai dau tren*".