Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
va doanh » vay doanh, va danh, hoa doanh
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
cam duc » cao duc, pham duc, nam duoc
van cua » vang cua, ban cua, dan cua
cua te » cua tu

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