Perhaps you should try some spelling variations:
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
thanh ve » hanh ve, thanh va, thanh vien
thuc va » thuc vat, thuc dan, thuc day
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
luc va » duc va, tuc va, loc va
va dau » va dao

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 _ lang xa hoi. hieu va dau ((luc va) or (thuc va)) thanh ve ((cua triet) OR (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach _ lang xa hoi. hieu va dau ((luc va) OR (thuc va)) thanh ve ((cua triet) OR (cua viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach _ lang xa hoi. hieu va dau ((luc va) or (thuc va)) thanh ve ((cua triet) OR (cua viet))*".