Perhaps you should try some spelling variations:
nhieu viec » nhien viet
hieu viec » hieu ve, sieu viet, hieu hien
dang xay » dang van, van xay
tu sach » thu sach, su sach, te sach
vai cuu » vai cua
anh vai » anh va, anh bai, anh van
van anh » van thanh, tuan anh, van minh
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cac co » cac cong
co van » cao van, vo van, so van

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