Perhaps you should try some spelling variations:
toc sach » hoc sach, thuoc sach, nuoc sach
tay khao » tham khao, va khao, tay cao
thanh ve » hanh ve, thanh va, thanh vien
doc sach » hoc sach, nuoc sach, dac sac
va thanh » gia thanh, ban thanh, va tinh
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
ve cua » le cua, de cua, te cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) or (doc sach)) ky dang ((xay hoi) or (tay khao)). hieu ve pham duc va thanh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (doc sach)) ky dang ((xay hoi) OR (tay khao)). hieu ve pham duc va thanh ve cua tre.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (doc sach)) ky dang ((xay hoi) or (tay khao)). hieu ve pham duc va thanh ve cua tre*.