Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
sach thu » sach thue, sach thieu, sach tham
hoc quoc » hoc nuoc, hoc duoc, hoc thuoc
su sach » so sach, vu sach
va danh » va dinh, va hanh, dia danh
qua hoc » cua hoc, quang hoc, qua hoat
cong xa » cong xay, cong xua, cong ha
va dan » ca dan, va dao, va dau

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 thu cong xa hoi. hieu qua hoc quoc ((va danh) or (va dan)) doi ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu cong xa hoi. hieu qua hoc quoc ((va danh) OR (va dan)) doi ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thu cong xa hoi. hieu qua hoc quoc ((va danh) or (va dan)) doi ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: su sach thu cong xa hoi. hieu qua hoc quoc ((va danh) or (va dan)) doi ((cua triet) OR (su triet))*.