Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
han thai » han tai, ban thai, van thai
thai cua » than cua, tai cuc, tri cua
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
tu xang » ty xang, tu lang, tu quang
xang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
xuc van » duc van, vuc van, xuc ban
luc van » luoc van, duc van, luc va
luu van » cuu van, luan van, luu hanh
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tu xang xa hoi. hieu ve cam ((xuc van) or (((luc van) or (luu van)))) han thai cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu xang xa hoi. hieu ve cam ((xuc van) OR (((luc van) OR (luu van)))) han thai cua thuoc.
• Adding a wildcard symbol may retrieve word variants: te sach tu xang xa hoi. hieu ve cam ((xuc van) or (((luc van) or (luu van)))) han thai cua thuoc*.