Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
tay lang » tai lang, tay tang, tay quang
viec cac » vien cac, viec cua, viec lam
tu sach » thu sach, su sach, te sach
ky lang » ky dang, ky tang
cac xuc » cam xuc, cac nuoc, chat xuc
va danh » va dinh, va dan, va hanh
danh ca » dan ca, doanh cua, danh cho
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
ca cua » co cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((((ky lang) OR (tay lang))) or (ky nang)) xa hoi. hieu viec cac xuc va danh ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((((ky lang) OR (tay lang))) OR (ky nang)) xa hoi. hieu viec cac xuc va danh ca cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((((ky lang) OR (tay lang))) or (ky nang)) xa hoi. hieu viec cac xuc va danh ca cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((((ky lang) OR (tay lang))) or (ky nang)) xa hoi. hieu viec cac xuc va danh ca cua tre*.