Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
toc sach » hoc sach, doc sach, thuoc sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
xuc van » duc van, luc van, vuc van
cuc ban » cua ban, cac ban, cuu ban
han tai » hang tai, nhan tai, van tai
tai cua » thai cua, tai cuc, tri cua

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

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