Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
hieu van » hieu va, thien van, lieu va
sach thu » sach thue, sach thieu, sach tham
cay phoi » cap phoi, tay hoi, cay cho
vai cua » dai cua, hai cua, lai cua
xa hanh » xa thanh, xa khanh, va hanh
nam tuc » nam thuc, nam truc, nam tu
cua tre » cua te, cuu tre, cua triet
xay hoi » xa hoi, tay hoi, gay thoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach thu) or (sach y)) dang ((xay hoi) OR (cay phoi)). hieu van nam tuc xa hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach thu) OR (sach y)) dang ((xay hoi) OR (cay phoi)). hieu van nam tuc xa hanh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach thu) or (sach y)) dang ((xay hoi) OR (cay phoi)). hieu van nam tuc xa hanh vai cua tre*".