Perhaps you should try some spelling variations:
hieu viec » nhieu viec, sieu viet, hieu hien
dinh cua » dinh cuu, sinh cua, dinh cu
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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 y nang ma hoi. ((hieu viec) OR (hieu ve)) cac xuc ((van hanh) or (van minh)) dinh cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ma hoi. ((hieu viec) OR (hieu ve)) cac xuc ((van hanh) OR (van minh)) dinh cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ma hoi. ((hieu viec) OR (hieu ve)) cac xuc ((van hanh) or (van minh)) dinh cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ma hoi. ((hieu viec) OR (hieu ve)) cac xuc ((van hanh) or (van minh)) dinh cua tre*.