Perhaps you should try some spelling variations:
van vanh » van anh, van hanh, van manh
vanh dai » van dai, vanh tai, lanh dao
hieu ve » hieu va, hieu van
cac xuc » cac nuoc, chat xuc, cac cuoc
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
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 sac ky nang ((5 hoi) or (xa hoi)). hieu ve ((cac xuc) OR (cam xuc)) van vanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((5 hoi) OR (xa hoi)). hieu ve ((cac xuc) OR (cam xuc)) van vanh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ((5 hoi) or (xa hoi)). hieu ve ((cac xuc) OR (cam xuc)) van vanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((5 hoi) or (xa hoi)). hieu ve ((cac xuc) OR (cam xuc)) van vanh dai cua tre*.