Perhaps you should try some spelling variations:
ban hanh » ban hang
hoc sac » hoc sach, hoc cac, hoc mac
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va danh » va dinh, va dan, va hanh
lam cuu » lam chu, lam cua, cham cuu
cuu tre » cua tre, cau tren, cau treo
sac ky » cac ky, sai ky
x hoi » xa hoi, o hoi, 5 hoi

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: hoc sac ky nang ((x hoi) OR (x ho)). hieu ve cham soc ((ban hanh) OR (va danh)) lam cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sac ky nang ((x hoi) OR (x ho)). hieu ve cham soc ((ban hanh) or (va danh)) lam cuu tre~".
• Adding a wildcard symbol may retrieve word variants: hoc sac ky nang ((x hoi) OR (x ho)). hieu ve cham soc ((ban hanh) or (va danh)) lam cuu tre*.