Perhaps you should try some spelling variations:
hanh vai » hanh va, hanh tai, hanh van
so sach » so sanh, bo sach, co sach
hang xa » hoang xa, hang va, hang ca
hieu va » lieu va, hieu qua
cam cuc » cam xuc, cham cuu, pham cuc
cuc ban » cua ban, cac ban, cuu ban
cua tre » cuu tre, cua triet, dua tren
y hang » ly hang, ty hang, yu hang
va cam » va cham, va cac, va cao
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: so sach y hang xa hoi. hieu va cam cuc ban ((hanh vai) or (hanh vi)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y hang xa hoi. hieu va cam cuc ban ((hanh vai) OR (hanh vi)) ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: so sach y hang xa hoi. hieu va cam cuc ban ((hanh vai) or (hanh vi)) ((cua tre) or (cua te))*.