Perhaps you should try some spelling variations:
hieu viec » nhieu viec, sieu viet, hieu hien
doanh van » doan van, doanh va, doanh ban
cau treo » cau theo, cau tren, cau triet
danh vai » danh sai, danh va, dang van
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
lo van » le van, vo van, so van
cac lo » cac lop, cac co, cac bo

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