Perhaps you should try some spelling variations:
nam thuoc » nam thu, nha thuoc, cay thuoc
khanh vai » khanh van, hanh vi, hanh va
xa khanh » xa thanh, van khanh, dat khanh
nam thuc » am thuc, nam thu, nam tu
vai cua » dai cua, hai cua, lai cua
hieu va » lieu va, hieu qua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ma hoi » mai hoi, ma hoa, me hoi
cua te » cua tu

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 (xa hoi)). hieu va ((nam thuc) OR (nam thuoc)) xa khanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((ma hoi) OR (xa hoi)). hieu va ((nam thuc) OR (nam thuoc)) xa khanh vai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ((ma hoi) or (xa hoi)). hieu va ((nam thuc) OR (nam thuoc)) xa khanh vai cua te*".