Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
thien van » thi van
hieu van » hieu va, lieu va, hieu ve
cham duc » pham duc, cham soc, pham duy
ban hanh » ban hang
ky dang » ky danh
duc ban » duc tan, duc van, dua ban
su sac » su sach, su cac, su xac
vi cua » vai 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: su sac ((ky dang) or (ky nang)) ha noi. ((hieu van) or (thien van)) cham duc ban hanh vi cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ((ky dang) OR (ky nang)) ha noi. ((hieu van) OR (thien van)) cham duc ban hanh vi cua thuoc.
• Adding a wildcard symbol may retrieve word variants: su sac ((ky dang) or (ky nang)) ha noi. ((hieu van) or (thien van)) cham duc ban hanh vi cua thuoc*.