Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
thien van » thi van
hanh vai » hanh vi, hanh va, hanh tai
hieu van » lieu va, hieu ve
cham dua » chay dua, cham giua, pham duc
ban hanh » ban hang
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
vai cua » dai cua, hai cua, lai cua
hieu va » lieu va, hieu qua
dua ban » dia ban, cua ban, qua ban
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky

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