Perhaps you should try some spelling variations:
"coleccion secundaria elementos dos ;" » "coleccion comunitaria elementos dos ;", "coleccion santeria elementos dos ;", "coleccion secundaria aciertos dos ;", "coleccion secundaria elementos de ;", "coleccion secundaria elementos del ;", "coleccion secundaria elementos por ;"
"educacion secundaria aspectos dos ;" » "educacion secundaria aciertos dos ;", "educacion secundaria retos dos ;", "educacion comunitaria aspectos dos ;", "educacion secundaria aspectos de ;", "educacion secundaria aspectos del ;", "educacion secundaria aspectos pol ;"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("educacion secundaria aspectos dos ;") or ("coleccion secundaria elementos dos ;"))~.
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• Adding a wildcard symbol may retrieve word variants: (("educacion secundaria aspectos dos ;") or ("coleccion secundaria elementos dos ;"))*.