Perhaps you should try some spelling variations:
thuat thuc » thuat thuy, thuyet thuc, thuc thuc
thanh hai » thanh phan, thanh hoa, thanh san
dat thanh » dao thanh, dat khanh, dang thanh
van thuat » va thuat, van thuan, van tuan
hieu van » hieu va, thien van, lieu va
sach thu » sach thue, sach thieu, sach tham
thuc dat » thuc vat, thuc dan, thuc day
hai cua » thai cua, dai cua, hoi cua
sach ty » sach y, sach tu, xach tay
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky

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 ty) or (sach thu))) or (sac ky)) nang xa hoi. hieu van thuat thuc dat thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((((sach ty) OR (sach thu))) OR (sac ky)) nang xa hoi. hieu van thuat thuc dat thanh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((((sach ty) or (sach thu))) or (sac ky)) nang xa hoi. hieu van thuat thuc dat thanh hai cua tre*.