Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
lang mai » lang dai, lang hai, lang man
thanh va » thanh van, hanh va, thanh ha
tu sach » thu sach, su sach, te sach
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
y lang » o lang, _ lang, tay lang
ve cam » ve cham, ve cac, va cam
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y lang mai hoi. hieu ve cam ((xuc ban) or (duc va)) thanh va cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y lang mai hoi. hieu ve cam ((xuc ban) OR (duc va)) thanh va cua thuoc.
• Adding a wildcard symbol may retrieve word variants: tu sach y lang mai hoi. hieu ve cam ((xuc ban) or (duc va)) thanh va cua thuoc*.