Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
bao luc » bao thuc
hang di » hang doi, hang vi, hang dien
cua tre » cua te, cuu tre, cua triet
nang o » nang co, nang ho, nang ro
va bao » va bai
luc va » duc va, tuc va, loc va
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ly nang o hoi. lieu va bao luc va ((hanh vi) or (hang di)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ly nang o hoi. lieu va bao luc va ((hanh vi) OR (hang di)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ly nang o hoi. lieu va bao luc va ((hanh vi) or (hang di)) cua tre*.