Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
dang cay » dang xay, dang ca, dang cac
cay phoi » cap phoi, tay hoi, cay cho
ban hanh » ban hang
vai cua » dai cua, hai cua, lai cua
cuu ban » cuu van, cua ban, cuu san
van cam » van nam, van cau, van dam
van lam » van nam
y dang » ky dang, 2 dang, _ dang
cua te » cua tu

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: ((te sach) OR (toc sach)) y dang cay phoi. hieu ((van cam) OR (van lam)) cuu ban hanh vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) y dang cay phoi. hieu ((van cam) or (van lam)) cuu ban hanh vai cua te~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) y dang cay phoi. hieu ((van cam) or (van lam)) cuu ban hanh vai cua te*.