Perhaps you should try some spelling variations:
"tarea del psicoanalisis y epigenetica." » "tarea y psicoanalisis y epigenetica.", "tarea del psicoanalisis la epigenetica.", "tareas del psicoanalisis y epigenetica.", "tarea de psicoanalisis y epigenetica.", "area del psicoanalisis y epigenetica."
"correa el psicoanalisis y genetica." » "correa el psicoanalisis la genetica.", "correa el psicoanalisis de genetica.", "correa el psicoanalisis y genomica.", "correa vela psicoanalisis y genetica.", "correcta el psicoanalisis y genetica.", "correa de psicoanalisis y genetica."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("tarea del psicoanalisis y epigenetica.") or ("correa el psicoanalisis y genetica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("tarea del psicoanalisis y epigenetica.") OR ("correa el psicoanalisis y genetica.")).
• Removing quotes may allow a broader search: (( tarea del psicoanalisis y epigenetica. ) or ( correa el psicoanalisis y genetica. )).
• Adding a wildcard symbol may retrieve word variants: (("tarea del psicoanalisis y epigenetica.") or ("correa el psicoanalisis y genetica."))*.