Perhaps you should try some spelling variations:
hieu viec » nhieu viec, sieu viet, hieu hien
cau treo » cau theo, cau tren, cau triet
van danh » van doanh, van hanh, van manh
vai cau » va cau, van cau, vai cac
van anh » van thanh, tuan anh, van minh
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
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) OR (van anh)) vai 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) OR (van anh)) vai 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) OR (van anh)) vai cau treo*".