Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
xuc ban » duc ban, cuc ban, quoc ban
ky dang » ky nang
vai cua » dai cua, hai cua, lai cua
ky danh » ky anh
va cham » va chat, va tham
cua te » cua tu
va cam » va cac, va cao, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ((ky dang) or (ky danh)) ma hoa. lieu ((va cam) OR (va cham)) xuc ban hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ((ky dang) OR (ky danh)) ma hoa. lieu ((va cam) OR (va cham)) xuc ban hanh vai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ((ky dang) or (ky danh)) ma hoa. lieu ((va cam) OR (va cham)) xuc ban hanh vai cua te*".