Perhaps you should try some spelling variations:
ban hanh » ban hang
sach ty » sach y, sach thu, xach tay
hai cuu » hai cua, hai chu, hai cuc
va danh » va dinh, va dan, va hanh
cac xuc » cam xuc, cac nuoc, chat xuc
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
sach tu » sach thu, cach tu, sach uu
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) OR (sach tu)) lang xa hoi. hieu ve cac xuc ((va danh) or (ban hanh)) hai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach tu)) lang xa hoi. hieu ve cac xuc ((va danh) OR (ban hanh)) hai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) OR (sach tu)) lang xa hoi. hieu ve cac xuc ((va danh) or (ban hanh)) hai cuu tre*".