Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
thien van » thi van
van hanh » van thanh, ban hanh, van anh
cham duc » pham duc, cham soc, pham duy
hieu van » hieu va, lieu va, hieu ve
hanh va » hang va, hanh vi
duc van » duc va, duc tan, duc manh
dung ha » dung va, dung he, dung khoa
dang ha » dong ha, lang ha, tang ha
sac ky » cac ky, sai ky
va cua » va chua, via cua, ca cua
su sac » su sach, su cac, 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 ky ((dang ha) or (dung ha)) noi. ((hieu van) or (thien van)) cham duc van hanh va cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky ((dang ha) OR (dung ha)) noi. ((hieu van) OR (thien van)) cham duc van hanh va cua thuoc.
• Adding a wildcard symbol may retrieve word variants: su sac ky ((dang ha) or (dung ha)) noi. ((hieu van) or (thien van)) cham duc van hanh va cua thuoc*.