Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
quoc ban » quoc bao, quoc lan, quoc quan
vai cua » dai cua, hai cua, lai cua
hoc anh » hoc nganh, hoc nhanh, ngoc anh
ky dang » ky nang, ky danh
dang ma » dang mau, dang mam, dang mat
va cam » va cham, va cao, va cai
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: ((hoc sach) OR (hoc anh)) ky dang ma hoa. lieu ((va cam) or (va cac)) quoc ban hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (hoc anh)) ky dang ma hoa. lieu ((va cam) OR (va cac)) quoc ban hanh vai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc sach) OR (hoc anh)) ky dang ma hoa. lieu ((va cam) or (va cac)) quoc ban hanh vai cua te*".