Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
doanh va » doan va, doanh tai, doanh cua
viec cac » vien cac, viec cua, ve cac
viec va » vien va, viec cua
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach y, sach ty
cuu tre » cua tre, cau tren, cau treo
so van » su van, vo van
va cuu » va cau, va chu, va huu

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