Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
nang doc » nang luc
hai cua » thai cua, dai cua, hoi cua
cam luc » cam xuc, cau luc
cua tre » cua te, cuu tre, cua triet
sach ty » sach tu, sach thu, xach tay
hieu ve » hieu va
doc loi » duc loi
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sach ty) OR (sach y)) nang doc loi. ((hieu ve) or (hieu van)) cam luc va thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sach ty) OR (sach y)) nang doc loi. ((hieu ve) OR (hieu van)) cam luc va thanh hai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach ty) OR (sach y)) nang doc loi. ((hieu ve) or (hieu van)) cam luc va thanh hai cua tre*".