Perhaps you should try some spelling variations:
luoc gia » quoc gia, luc gia, luong gia
gia hanh » gia thanh, giao hanh, gia anh
van cam » van lam, van cau, van dam
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
vi cua » vai cua, di 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: te sac ky nang ((5 hoi) or (x ho)). hieu ((van cam) or (van nam)) luoc gia hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang ((5 hoi) OR (x ho)). hieu ((van cam) OR (van nam)) luoc gia hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ((5 hoi) or (x ho)). hieu ((van cam) or (van nam)) luoc gia hanh vi cua tre*.