Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ban anh » ban hanh, ban banh, ban danh
xuc ban » duc ban, cuc ban, quoc ban
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu van
anh le » manh le, oanh le, anh ve
le cua » ly cua
5 hoi » o hoi

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 nang ((5 hoi) or (xa hoi)). ((hieu ve) or (hieu va)) cac xuc ban anh le cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((5 hoi) OR (xa hoi)). ((hieu ve) OR (hieu va)) cac xuc ban anh le cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((5 hoi) or (xa hoi)). ((hieu ve) or (hieu va)) cac xuc ban anh le cua tre*.