Perhaps you should try some spelling variations:
nam dung » nam vung, nam dong, am dung
thu nam » tu nam, thu nhap, thu nhat
sach ky » sac ky, sach y, sach kem
lang xa » lang ha, dang xay, lang van
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet
le nam » ly nam, he nam, te nam
va cua » va chua, via cua, ca cua
le na » le va, le ta, le ha

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 ky) or (sach ty)) lang xa hoi. hieu ((le nam) or (le na)) thu nam dung va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach ty)) lang xa hoi. hieu ((le nam) OR (le na)) thu nam dung va cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach ty)) lang xa hoi. hieu ((le nam) or (le na)) thu nam dung va cua tre*.