Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
vai cua » dai cua, hai cua, lai cua
vu cac » va cac, tu cac, ve cac
ve nam » he nam, va nam, le nam
vi cua » di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu cac ky nang cao hoi. hieu ve nam thuoc ((va hanh) or (va danh)) ((vi cua) or (vai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu cac ky nang cao hoi. hieu ve nam thuoc ((va hanh) OR (va danh)) ((vi cua) OR (vai cua)) te.
• Adding a wildcard symbol may retrieve word variants: vu cac ky nang cao hoi. hieu ve nam thuoc ((va hanh) or (va danh)) ((vi cua) or (vai cua)) te*.