Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien cac » thien cac, vien cac, hieu cac
bach ky » bac ky
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, 5 hoi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach ky nang ((x hoi) or (x ho)). hieu hien cac xuc ((va hanh) or (gia thanh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach ky nang ((x hoi) OR (x ho)). hieu hien cac xuc ((va hanh) OR (gia thanh)) vi cua tre.
• Adding a wildcard symbol may retrieve word variants: vu bach ky nang ((x hoi) or (x ho)). hieu hien cac xuc ((va hanh) or (gia thanh)) vi cua tre*.