Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
cau theo » cau thi, cau tao
cau treo » cau tren, cau triet, cau trieu
danh sai » dung sai, danh bat, danh dau
danh vai » danh va, doanh van, dang van
viec cac » vien cac, viec cua, viec lam
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
tu sach » thu sach, su sach, te sach
cac lo » cac lop, cac co, cac bo
lo van » le 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 hoi. hieu viec cac lo van ((danh vai) OR (danh sai)) ((cau treo) or (cau theo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu viec cac lo van ((danh vai) OR (danh sai)) ((cau treo) OR (cau theo))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu viec cac lo van ((danh vai) OR (danh sai)) ((cau treo) or (cau theo))*".