Perhaps you should try some spelling variations:
thanh ca » thanh cha, thanh cac, thanh ha
sach ky » sac ky, sach y, sach kem
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
sach ty » sach y, sach tu, sach thu
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa
ca cua » co cua
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: vu ((sach ky) OR (sach ty)) lang xa hoi. hieu ve cac ((luc va) or (tuc va)) thanh ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ky) OR (sach ty)) lang xa hoi. hieu ve cac ((luc va) OR (tuc va)) thanh ca cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ky) OR (sach ty)) lang xa hoi. hieu ve cac ((luc va) or (tuc va)) thanh ca cua tre*".