Perhaps you should try some spelling variations:
hieu nghe » lieu nghe, hiem ngheo, nhiem nghe
cua triet » cua viet, su triet, va triet
sach tay » xach tay, sach hay, sach nay
nghe nam » nghe lam, nghiep nam, nghe nano
tu sach » thu sach, su sach, te sach
tang ma » tang van
thu xac » thau xay
dinh ba » dinh gia, dinh van, dinh lam
ba cua » ban cua, bai cua, bao cua

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 tay ((tang ma) OR (mang may)) hoi. hieu nghe nam thu xac dinh ba cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tay ((tang ma) OR (mang may)) hoi. hieu nghe nam thu xac dinh ba cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach tay ((tang ma) OR (mang may)) hoi. hieu nghe nam thu xac dinh ba cua triet*.