Perhaps you should try some spelling variations:
"imagenes matematica de bellas artes ;" » "imagenes matematicas de bellas artes ;", "imagenes matematica en bellas artes ;", "imagenes matematica y bellas artes ;", "imagenes matematica de las artes ;"
"cuadernos tecnicos de bellas artes ;" » "cuadernos practicos de bellas artes ;", "cuadernos biblicos de bellas artes ;", "cuadernos tecnicos de las artes ;", "cuadernos tecnicas de bellas artes ;", "cuadernos tecnico de bellas artes ;", "cuadernos tecnica 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: (("imagenes matematica de bellas artes ;") or ("cuadernos tecnicos de bellas artes ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("imagenes matematica de bellas artes ;") OR ("cuadernos tecnicos de bellas artes ;")).
• Removing quotes may allow a broader search: (( imagenes matematica de bellas artes ; ) or ( cuadernos tecnicos de bellas artes ; )).
• Adding a wildcard symbol may retrieve word variants: (("imagenes matematica de bellas artes ;") or ("cuadernos tecnicos de bellas artes ;"))*.