Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
nang lai » nang tai, mang lai, nang cai
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
cau luc » cau truc, cau phuc
sach ky » sac ky, sach y, sach kem
lai hoi » dai hoi, lai hoa, lai roi
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet
ve cau » ke cau, va cau, ve cac
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sach ky) OR (sach ty)) nang lai hoi. hieu ve cau luc va hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach ky) OR (sach ty)) nang lai hoi. hieu ve cau luc va hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: so ((sach ky) OR (sach ty)) nang lai hoi. hieu ve cau luc va hanh vai cua tre*.