Perhaps you should try some spelling variations:
thuoc sac » thuoc sach, thuoc dac, thuoc sai
cham duc » pham duc, cham soc, pham duy
mai hoi » mai khoi, dai hoi, lai hoi
va cham » va chat, va tham
va vanh » va van, va danh, va hanh
tai cac » tai cuc
tai cao » thai cao, tao cao, tai sao
sac ky » cac ky, sai ky
ma hoi » xa hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sac ky nang ((ma hoi) or (mai hoi)). lieu va cham duc va vanh ((tai cac) or (tai cao)) trieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sac ky nang ((ma hoi) OR (mai hoi)). lieu va cham duc va vanh ((tai cac) OR (tai cao)) trieu.
• Adding a wildcard symbol may retrieve word variants: thuoc sac ky nang ((ma hoi) or (mai hoi)). lieu va cham duc va vanh ((tai cac) or (tai cao)) trieu*.