Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
ve triet » va trien, su triet
nang ma » tang ma, sang ma, mang may
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
cac xuc » cam xuc, cac nuoc, chat xuc
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ky ((nang ma) OR (nang cao)) hoa. hieu ve cac xuc va danh vi ((cua te) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ky ((nang ma) OR (nang cao)) hoa. hieu ve cac xuc va danh vi ((cua te) OR (ve triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky ((nang ma) OR (nang cao)) hoa. hieu ve cac xuc va danh vi ((cua te) or (ve triet))*".