Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
su triet » su viet, ve triet
hanh vai » hanh vi, hanh va, hanh tai
dan hanh » dang hanh, dan khanh, dan thanh
vu sach » vu bach, su sach, vu khach
su tien » su kien, su hien, tu tieng
sach ky » sac ky, sach y, sach ty
hieu ha » hieu hoa, hieu va, hieu ca
nang xa » lang xa, nang ma, mang xa
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: vu sach ky ((nang xa) or (nang x)) hoi. hieu ha am thuc dan hanh vai ((su triet) OR (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky ((nang xa) OR (nang x)) hoi. hieu ha am thuc dan hanh vai ((su triet) OR (su tien))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky ((nang xa) or (nang x)) hoi. hieu ha am thuc dan hanh vai ((su triet) OR (su tien))*".