Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh tai, hanh van
co sach » bo sach, cuon sach, hoc sach
sach ty » sach y, sach tu, sach thu
hanh va » hang va, hanh vi
xuc van » duc van, luc van, xuc ban
hang xa » hoang xa, hang va, hang ca
ty hang » ly hang, ty xang, thi hang
cua tre » cua te, cuu tre, cua triet
va cao » va cac, va co, va dao
va cam » va cham, va cac, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach ty hang xa hoi. lieu ((va cam) OR (va cao)) xuc van ((hanh vai) or (hanh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach ty hang xa hoi. lieu ((va cam) OR (va cao)) xuc van ((hanh vai) OR (hanh va)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co sach ty hang xa hoi. lieu ((va cam) OR (va cao)) xuc van ((hanh vai) or (hanh va)) cua tre".
• Adding a wildcard symbol may retrieve word variants: co sach ty hang xa hoi. lieu ((va cam) OR (va cao)) xuc van ((hanh vai) or (hanh va)) cua tre*.