Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
doanh van » doan van, doanh va, doanh ban
viec cac » vien cac, viec cua, viec lam
danh vai » danh sai, danh va, dang van
cau treo » cau theo, cau tren, cau triet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
so van » su van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang xa hoi. nhieu viec cac ((vo van) or (so van)) ((danh vai) OR (doanh van)) cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. nhieu viec cac ((vo van) OR (so van)) ((danh vai) OR (doanh van)) cau treo*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. nhieu viec cac ((vo van) or (so van)) ((danh vai) OR (doanh van)) cau treo*".