Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
van hanh » van thanh, ban hanh, van ban
tu sach » thu sach, su sach, te sach
van anh » van thanh, tuan anh, van minh
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach y, sach ty
nam lo » nam bo, nam so, nam co
lam lo » lam co, cam lo, lam so

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 nang xa hoi. hieu viec ((lam lo) OR (nam lo)) ((van anh) or (van hanh)) vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu viec ((lam lo) OR (nam lo)) ((van anh) OR (van hanh)) vai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu viec ((lam lo) OR (nam lo)) ((van anh) or (van hanh)) vai cuu tre*".