Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
hieu va » hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc va

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 ky sang ma hoi. ((hieu va) or (lieu va)) cac xuc va ((danh cho) or (dan ca)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang ma hoi. ((hieu va) OR (lieu va)) cac xuc va ((danh cho) OR (dan ca)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang ma hoi. ((hieu va) or (lieu va)) cac xuc va ((danh cho) or (dan ca)) cua tre*.