Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
doanh va » doan va, doanh tai, doanh cua
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cham tu » pham tu, cam tu, chai tu
su tien » su hien, tu tieng, dau tien
tu van » tu va
kien » bien, vien, dien

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 ve cham tu van doanh va ((su tien) OR (su kien))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu ve cham tu van doanh va ((su tien) OR (su kien))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu ve cham tu van doanh va ((su tien) OR (su kien))*.