Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
kho tang » cao tang
vien cac » vien bach, vien dai, vien da
van hang » van khang, van hoang, van thang
hang hai » hoang hai, hang tai, thanh hai
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
hai cua » thai cua, dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
su cac » tu cac, su cao, su can

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ((ky nang) or (kho tang)) xa hoi. hieu vien cac xuc van hang hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ((ky nang) OR (kho tang)) xa hoi. hieu vien cac xuc van hang hai cua tre.
• Adding a wildcard symbol may retrieve word variants: su cac ((ky nang) or (kho tang)) xa hoi. hieu vien cac xuc van hang hai cua tre*.