Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
bat thanh » ban thanh, bac thanh, dat thanh
thanh ve » hanh ve, thanh va, thanh vien
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va, hieu qua
bao luc » bao thuc
luc bat » suc bat, luc nhat, luat bat
cua tre » cua te, cuu tre, cua triet
va bao » va bai
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: thuoc sach y ((nang xa) or (nang x)) hoi. hieu va bao luc bat thanh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y ((nang xa) OR (nang x)) hoi. hieu va bao luc bat thanh ve cua tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sach y ((nang xa) or (nang x)) hoi. hieu va bao luc bat thanh ve cua tre*.