Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
vien cac » vien bach, vien dai, vien da
dang deo » dang do, dang de, dang dieu
cac thu » cach thuc, cac thoi
thu day » thuc day, thu da, thu dac
dung de » dung he, dung dat
cua tre » cua te, cuu tre, cua triet
vu sai » vu hai, vu san, vu dai
sai ky » sac ky
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sai ky nang x hoi. hieu vien cac thu day ((dang deo) or (dung de)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sai ky nang x hoi. hieu vien cac thu day ((dang deo) OR (dung de)) cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sai ky nang x hoi. hieu vien cac thu day ((dang deo) or (dung de)) cua tre*.