Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
cham xuc » cam xuc, chat xuc, pham duc
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
van cau » van dau, van hau, van chat
va cau » va cac, va dau, va cao
x hoi » xa hoi, o hoi, x ho

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu van ((cham xuc) OR (cham soc)) van thanh ((va cau) OR (van cau)) tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu van ((cham xuc) or (cham soc)) van thanh ((va cau) OR (van cau)) tren~".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu van ((cham xuc) or (cham soc)) van thanh ((va cau) OR (van cau)) tren*.