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