Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
cau treo » cau theo, cau tren, cau triet
cong van » cong vang, cong san, song van
danh sai » dung sai, danh bat, danh dau
danh vai » danh va, doanh van, dang van
cac cong » cua cong
viec cac » vien cac, viec cua, viec lam
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren
tu sach » thu sach, su sach, te sach
y nang » ky nang, ly nang, v nang

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