Perhaps you should try some spelling variations:
chat xuc » chat huu, chao xu, chat cua
dinh cua » dinh cuu, sinh cua, tinh cua
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
dinh cu » dinh cuu, dinh chuc, dinh chau
cua tre » cua te, cuu tre, cua triet
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: tu sach ky nang o hoi. hieu ve ((chat xuc) or (cam xuc)) va ((dinh cua) OR (dinh cu)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang o hoi. hieu ve ((chat xuc) OR (cam xuc)) va ((dinh cua) OR (dinh cu)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang o hoi. hieu ve ((chat xuc) or (cam xuc)) va ((dinh cua) OR (dinh cu)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang o hoi. hieu ve ((chat xuc) or (cam xuc)) va ((dinh cua) OR (dinh cu)) cua tre*.