Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cac toc » cac toi, cac nuoc, cac thoi
xa danh » va danh, dia danh, nam danh
vai cua » hai cua, lai cua, bai cua
ve cac » va cac, vien cac
toc xa » tuc xa, toc ta, hoc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky lang xa hoi. hieu ve cac toc xa danh ((vai cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky lang xa hoi. hieu ve cac toc xa danh ((vai cua) OR (dai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky lang xa hoi. hieu ve cac toc xa danh ((vai cua) or (dai cua)) tre*.