Perhaps you should try some spelling variations:
tham hoc » thai hoc, tham hoa, than hoc
su triet » su tien, ve triet
so sach » so sanh, bo sach, co sach
cao hoi » cau hoi, co hoi, cao hoc
va tham » van tham, va cham, va thanh
va danh » va dinh, va dan, va hanh
danh ve » dinh ve, hanh ve, anh ve
su viet » so viet
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y nang cao hoi. lieu va tham hoc va danh ve ((su triet) OR (su viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y nang cao hoi. lieu va tham hoc va danh ve ((su triet) OR (su viet))".
• Adding a wildcard symbol may retrieve word variants: so sach y nang cao hoi. lieu va tham hoc va danh ve ((su triet) OR (su viet))*.