Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, cau treo
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
ca tren » cu tren, la tren, co tren
xuc ban » duc ban, cuc ban, quoc ban
sach ky » sac ky, sach y, sach ty
xuc van » duc van, luc van, thuc van
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: tu sach ky nang x hoi. hieu van cham ((xuc van) OR (xuc ban)) hanh vai ((cau tren) OR (ca tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. hieu van cham ((xuc van) OR (xuc ban)) hanh vai ((cau tren) or (ca tren))~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu van cham ((xuc van) OR (xuc ban)) hanh vai ((cau tren) or (ca tren))*.