Perhaps you should try some spelling variations:
chua tre » chua tri, cua tre, chua trieu
hieu van » hieu va, thien van, lieu va
thu sach » thuat sach, thuoc sach, thu hoach
ban danh » ban doanh, ban hanh, ban dan
cham xuc » cam xuc, chat xuc, cham soc
va chua » vua chua, ca chua, va chu
danh va » doanh va, hanh va, anh va
xuc ban » duc ban, cuc ban, quoc ban
tu sach » su sach, te sach, tu cach
hieu ve » hieu va
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
ma hoi » mai hoi, xa hoi, ma hoa

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) or (thu sach)) ky sang ma hoi. ((hieu ve) or (hieu van)) cham xuc ban danh va chua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky sang ma hoi. ((hieu ve) OR (hieu van)) cham xuc ban danh va chua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky sang ma hoi. ((hieu ve) or (hieu van)) cham xuc ban danh va chua tre*.