Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cac tuc » cac toc, cac tu, cac tac
danh vi » dinh vi, danh di, danh va
luu tre » luu tru, cuu tre, luy tre
x hoi » xa hoi, o hoi, x ho

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. hieu viec cac tuc xa ((danh vi) OR (hanh vi)) luu tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu viec cac tuc xa ((danh vi) OR (hanh vi)) luu tre*.