Perhaps you should try some spelling variations:
doanh vai » doanh tai, doanh va, doanh van
van doanh » toan doanh, van dong, van thanh
hieu viec » nhieu viec, hieu ve, sieu viet
cau tren » cu tren, dau tren, ca tren
viec cac » vien cac, viec cua, viec lam
vai cau » va cau, van cau, vai cac
nang xa » nang x, lang xa, nang ma
te sach » toc sach
tu sach » thu sach, su sach, tu cach
cac vo » cac co, cac vi, cac bo
tu sac » tu cac, tu san, tu bac

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

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