Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
sach doi » sach hoi, sach moi, sach dao
quoc ban » quoc bao, quoc lan, quoc quan
va phan » van phan, va phat, va phap
cua tre » cua te, cuu tre, cua triet
sach lo » sach dao, sach hoi, sach moi
nang xa » nang x, lang xa, nang ma
va han » van han, va hanh, va hang
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)) nang xa hoi. lieu ((va han) OR (va phan)) 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)) nang xa hoi. lieu ((va han) OR (va phan)) 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)) nang xa hoi. lieu ((va han) OR (va phan)) quoc ban thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach lo) or (sach doi)) nang xa hoi. lieu ((va han) OR (va phan)) quoc ban thanh vi cua tre*.