Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
hieu van » hieu va, thien van, lieu va
hang vai » hang va, hang tai, hang hai
ban hang » ngan hang
cham duc » cham soc, pham duy, phan duc
dong ha » dong hoa, dong va, dong hoc
ky dong » ly dong, ky dang, ky cong
vai cua » dai cua, hai cua, lai cua
su cac » tu cac, su cao, su can
su sac » su sach, su xac

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) OR (su cac)) ky dong ha noi. hieu van ((cham duc) or (pham duc)) ban hang vai cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su cac)) ky dong ha noi. hieu van ((cham duc) OR (pham duc)) ban hang vai cua thuoc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su cac)) ky dong ha noi. hieu van ((cham duc) or (pham duc)) ban hang vai cua thuoc".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su cac)) ky dong ha noi. hieu van ((cham duc) or (pham duc)) ban hang vai cua thuoc*.