Perhaps you should try some spelling variations:
ban banh » ban hanh, ban anh, ban danh
hieu van » thien van, lieu va, hieu ve
tu sach » thu sach, su sach, te sach
cua tre » cuu tre, cua triet, dua tren
banh vi » hanh vi, ban vi, benh vi
hieu va » lieu va, hieu qua
sach ty » sach y, sach tu, sach thu
nam xuc » cam xuc, nam xua, nam thuc
xuc ban » duc ban, cuc ban, quoc ban
ang xa » lang xa, mang xa, dang xay
ty ang » ty xang, ty hang, ty anh
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ang xa hoi. ((hieu van) OR (hieu va)) nam xuc ban banh vi ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ang xa hoi. ((hieu van) OR (hieu va)) nam xuc ban banh vi ((cua tre) or (cua te))~".
• Adding a wildcard symbol may retrieve word variants: tu sach ty ang xa hoi. ((hieu van) OR (hieu va)) nam xuc ban banh vi ((cua tre) or (cua te))*.