Perhaps you should try some spelling variations:
nang lai » nang tai, mang lai, nang cai
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach
va hanh » van hanh, va thanh, va danh
cua tre » cuu tre, cua triet, dua tren
vu sach » vu bach, vu khach
lai hoi » dai hoi, lai hoa, lai roi
hieu ve » hieu va, hieu van
cam luc » cam xuc, cau luc
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va
y nang » ky nang, ly nang, v nang
cua te » cua tu

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