Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
hieu van » hieu va, thien van, lieu va
so bang » so dang, so lang, co bang
bang ky » dang ky, ban ky, tang ky
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
xuc cac » xuc tac, tuc cac, xuc cam
dan di » danh di, dan de, dan li
dan da » dan dat, dan ca, dan va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so bang ky lang xa hoi. hieu van cac xuc cac ((dan di) or (dan da)) cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so bang ky lang xa hoi. hieu van cac xuc cac ((dan di) OR (dan da)) cua thuoc.
• Adding a wildcard symbol may retrieve word variants: so bang ky lang xa hoi. hieu van cac xuc cac ((dan di) or (dan da)) cua thuoc*.