Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
sach ky » sac ky, sach ty, sach kem
via cua » gia cua, gian cua, giau cua
van anh » tuan anh, van minh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
cac lo » cac lop, cac co, cac bo
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: thu ((sach ky) or (sach y)) lang xa hoi. hieu ve cac lo ((van anh) OR (van thanh)) via cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ky) OR (sach y)) lang xa hoi. hieu ve cac lo ((van anh) OR (van thanh)) via cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ky) or (sach y)) lang xa hoi. hieu ve cac lo ((van anh) OR (van thanh)) via cua tre*".