Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
va doanh » vay doanh, va danh, hoa doanh
hieu van » hieu va, thien van, lieu va
te sach » toc sach
van cua » vang cua, ban cua, dan cua
cac tuc » cac toc, cac tu, cac tac
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet

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