Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
sach hoi » sach moi, cach thoi, hoach hoi
sach doi » sach moi, sach dao, sach bai
quoc ban » quoc bao, quoc lan, quoc quan
thanh vi » hanh vi, thanh va, thanh ve
sach lo » sach dao, sach moi, sach bao
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
va han » va phan, van han, va hanh
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach lo) or (((sach doi) OR (sach hoi)))) nang xa hoi. lieu va han quoc ban thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach lo) OR (((sach doi) OR (sach hoi)))) nang xa hoi. lieu va han quoc ban thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach lo) or (((sach doi) OR (sach hoi)))) nang xa hoi. lieu va han quoc ban thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach lo) or (((sach doi) OR (sach hoi)))) nang xa hoi. lieu va han quoc ban thanh vi cua tre*.