Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
tuan thai » xuan thai, tuan khai, tuan tai
viec lam » viec va
thai cua » than cua, tai cuc, tri cua
luc van » luoc van, luu van, duc van
xuc van » duc van, vuc van, xuc ban
cua tre » cua te, cuu tre, cua triet
nang co » nang cao, nang doc, nang noi
co lai » con lai, o lai, co dai
tu san » thu san, tu ban, tu can
tu sac » tu sach, tu cac, tu bac

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) or (tu san)) ky nang co lai. hieu viec lam ((xuc van) or (luc van)) tuan thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky nang co lai. hieu viec lam ((xuc van) OR (luc van)) tuan thai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu san)) ky nang co lai. hieu viec lam ((xuc van) or (luc van)) tuan thai cua tre*.