Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
chat luc » chat xuc, chat lua, nhan luc
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu van
sang ma » tang ma, nang ma, sang tao
mang xa » lang xa, mang may, dang xay
luc va » duc va, tuc va, loc va

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 ty ((mang xa) or (sang ma)) hoi. ((hieu ve) or (hieu va)) chat luc va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((mang xa) OR (sang ma)) hoi. ((hieu ve) OR (hieu va)) chat luc va hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((mang xa) or (sang ma)) hoi. ((hieu ve) or (hieu va)) chat luc va hanh vai cua tre*.