Perhaps you should try some spelling variations:
thuc dang » thuoc dang, thuc dan, thuc dung
dang hanh » dang thanh, ban hanh, dang van
su triet » su viet, ve triet
hanh vai » hanh vi, hanh va, hanh tai
sach ky » sac ky, sach y, sach kem
su tien » su kien, su hien, tu tieng
hieu ha » hieu hoa, hieu va, hieu ca
lang xa » lang ha, dang xay, lang van
sach ty » sach y, sach tu, sach thu
ha am » hoa am, ha nam, ha lam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) or (sach ty)) lang xa hoi. hieu ha am thuc dang hanh vai ((su triet) OR (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach ty)) lang xa hoi. hieu ha am thuc dang hanh vai ((su triet) OR (su tien))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) or (sach ty)) lang xa hoi. hieu ha am thuc dang hanh vai ((su triet) OR (su tien))*".