Perhaps you should try some spelling variations:
nang lai » nang tai, mang lai, nang cai
hanh vai » hanh vi, hanh va, hanh tai
sach ty » sach y, sach thu, xach tay
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
cau luc » cau truc, cau phuc
cam luc » cam xuc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
lai hoi » dai hoi, lai hoa, lai roi
sach tu » sach thu, cach tu, sach uu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) OR (sach tu)) nang lai hoi. hieu ve ((cam luc) or (cau luc)) va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach tu)) nang lai hoi. hieu ve ((cam luc) OR (cau luc)) va hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) OR (sach tu)) nang lai hoi. hieu ve ((cam luc) or (cau luc)) va hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) OR (sach tu)) nang lai hoi. hieu ve ((cam luc) or (cau luc)) va hanh vai cua tre*.