Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
vien nam » viet nam, vien dai, van nam
van hanh » van thanh, ban hanh, van anh
vu sach » su sach, vu khach
nang xa » nang x, lang xa, nang ma
nam xuc » cam xuc, nam xua, nam thuc
hoi cua » hoi chuc
cua tre » cua te, cuu tre, cua triet

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

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