Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
lang van » dang van, tang van, hoang van
cua tre » cua te, cuu tre, cua triet
cau cua » cau qua, ca cua, cu cua
sach ky » sac ky, sach y, sach kem
van hoc » van hoa
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
ve cau » ke cau, va cau, ve cac

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 van hoc. hieu ve cau cua ban hanh vai ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach ty)) lang van hoc. hieu ve cau cua ban hanh vai ((cua tre) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach ty)) lang van hoc. hieu ve cau cua ban hanh vai ((cua tre) or (su triet))*".