Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
tu sach » thu sach, su sach, te sach
cua tre » cuu tre, cua triet, dua tren
hanh de » hanh ve, hanh kem
sach ky » sac ky, sach y, sach ty
xuc ban » duc ban, cuc ban, quoc ban
va chat » van chat, va phat, cao chat
hieu va » lieu va, hieu qua
anh de » anh d, anh ve, anh du
nang o » nang co, nang ho, nang ro
cua te » cua tu
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: tu sach ky nang o hoi. hieu va chat xuc ban ((anh de) or (hanh de)) ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang o hoi. hieu va chat xuc ban ((anh de) OR (hanh de)) ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang o hoi. hieu va chat xuc ban ((anh de) or (hanh de)) ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang o hoi. hieu va chat xuc ban ((anh de) or (hanh de)) ((cua tre) OR (cua te))*.