Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh kem » hanh kem, thanh ke, thanh ket
te sach » toc sach
qua cau » quan cau, qua cac, qua ca
cau luc » cau truc, cau phuc
luc van » luoc van, luu van, duc van
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
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: te sach y nang o hoi. hieu qua cau luc van thanh kem ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang o hoi. hieu qua cau luc van thanh kem ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te sach y nang o hoi. hieu qua cau luc van thanh kem ((cua tre) or (cuu tre))*.