Perhaps you should try some spelling variations:
khanh tai » thanh tai, hanh tai, nhanh thai
van khanh » van thanh, van hanh, van anh
hieu ve » hieu va, hieu van
tai cuu » tai cuc, tai buu, tai cua
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
cuu tre » cua tre, cau tren, cau treo
co hoi » co hoc, co loi
ve cac » va cac, vien cac
o hoi » o hoc, o hai, o 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 (su sach)) ky nang ((o hoi) or (co hoi)). hieu ve cac xuc van khanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang ((o hoi) OR (co hoi)). hieu ve cac xuc van khanh tai cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang ((o hoi) or (co hoi)). hieu ve cac xuc van khanh tai cuu tre*.