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