Perhaps you should try some spelling variations:
"modelos mamatematicas de bellas artes ;" » "modelos matematicos de bellas artes ;", "modelo matematico de bellas artes ;", "modelos matematicas de bellas artes ;", "modelos matematica de bellas artes ;", "modelos mamatematicas de las artes ;"
"cuadernos tematicos de bellas artes ;" » "cuadernos tecnicos de bellas artes ;", "cuadernos teoricos de bellas artes ;", "cuadernos practicos de bellas artes ;", "cuadernos tematicos de las artes ;", "cuadernos matematicos de bellas artes ;", "cuadernos somaticos de bellas artes ;", "cuadernos matematicas de bellas artes ;"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modelos mamatematicas de bellas artes ;") or ("cuadernos tematicos de bellas artes ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modelos mamatematicas de bellas artes ;") OR ("cuadernos tematicos de bellas artes ;")).
• Removing quotes may allow a broader search: (( modelos mamatematicas de bellas artes ; ) or ( cuadernos tematicos de bellas artes ; )).
• Adding a wildcard symbol may retrieve word variants: (("modelos mamatematicas de bellas artes ;") or ("cuadernos tematicos de bellas artes ;"))*.