Perhaps you should try some spelling variations:
khanh thanh » nhanh thanh, thanh thanh, phan thanh
thanh cuu » thanh luu, thanh chu, thanh tuu
van khanh » van thanh, van hanh, van anh
chat xuc » chat huu, cam xuc, chao xu
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cac xuc » cam xuc, cac nuoc, cac cuoc
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va, hieu van
co hai » co dai, co hoi, so hai
o hai » so hai, o lai, _ hai

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 ((o hai) or (co hai)). hieu ve ((cac xuc) OR (chat xuc)) van khanh thanh cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((o hai) OR (co hai)). hieu ve ((cac xuc) OR (chat xuc)) van khanh thanh cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ((o hai) or (co hai)). hieu ve ((cac xuc) OR (chat xuc)) van khanh thanh cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((o hai) or (co hai)). hieu ve ((cac xuc) OR (chat xuc)) van khanh thanh cuu tre*.