Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
phat loc » hau loc, nhat loi, phap lo
cuu tre » cua tre, cau tren
hanh le » thanh le, hanh ve, hanh de
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
loc va » hoc va, luc va
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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 ma hoi. hieu va phat loc va ((hanh le) or (hanh kem)) ((cuu tre) OR (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ma hoi. hieu va phat loc va ((hanh le) OR (hanh kem)) ((cuu tre) OR (cau treo))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ma hoi. hieu va phat loc va ((hanh le) or (hanh kem)) ((cuu tre) OR (cau treo))*".