Perhaps you should try some spelling variations:
thai cao » thoai cac, thuat cao, toan cao
nam thuc » nam thuoc, am thuc, nam thu
lieu ha » lieu nha, lieu va, liem ha
thuc xa » thuc xay, tuc xa, thuc va
xa hanh » xa thanh, xa khanh, va hanh
tai cao » tao cao, tai sao, tai cac
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, me hoi
tu sac » tu sach, tu cac, tu san

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 ((ma hoi) or (ma hoa)). lieu ha nam thuc xa hanh ((tai cao) OR (thai cao)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((ma hoi) OR (ma hoa)). lieu ha nam thuc xa hanh ((tai cao) OR (thai cao)) tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ((ma hoi) or (ma hoa)). lieu ha nam thuc xa hanh ((tai cao) OR (thai cao)) tren*".