Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
quan anh » quan hanh, quang anh, tuan anh
hieu sau » hieu su, hieu suat, tieu su
sau pham » san pham, su pham, cau pham
su triet » su viet, ve triet
su tien » su kien, su hien, tu tieng
sai ky » sac ky
tu sai » tu bai, tu san, tu cai
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang x hoi. hieu sau pham duc ((van thanh) or (quan anh)) di ((su triet) OR (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang x hoi. hieu sau pham duc ((van thanh) OR (quan anh)) di ((su triet) OR (su tien))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang x hoi. hieu sau pham duc ((van thanh) or (quan anh)) di ((su triet) OR (su tien))*".