Perhaps you should try some spelling variations:
cuadernos politicos » cuadernos politicas, cuadros politicos, cuadernos practicos
cuadernos criticos » cuadernos practicos, cuadernos juridicos, cuadernos politicas
estudios los » estudio los, estudios con, estudios mas
del rica » del africa, miel rica, del rio
del rico » del rio, el rico, del rincon

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

• Performing a fuzzy search may retrieve terms with similar spellings: estudios los ((cuadernos criticos) or (cuadernos politicos)) ((del rica) OR (del rico)) latina.~.
• If you are trying to use Boolean operators, they must be ALL CAPS: estudios los ((cuadernos criticos) OR (cuadernos politicos)) ((del rica) OR (del rico)) latina..
• The words AND, OR and NOT may confuse the search; try adding quotes: "estudios los ((cuadernos criticos) or (cuadernos politicos)) ((del rica) OR (del rico)) latina.".
• Adding a wildcard symbol may retrieve word variants: estudios los ((cuadernos criticos) or (cuadernos politicos)) ((del rica) OR (del rico)) latina.*.