Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thuoc va » thuc va, thuoc ma, thuong va
nang ra » nang ma, lang ra, nang ro
qua nam » quan nam, cua nam, quang nam
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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 cao) or (nang ra)) hoi. hieu qua nam thuoc va hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang cao) OR (nang ra)) hoi. hieu qua nam thuoc va hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang cao) or (nang ra)) hoi. hieu qua nam thuoc va hanh vi cua tu*.