Perhaps you should try some spelling variations:
"varelo el psicoanalisis la epigenetica." » "varelo el psicoanalisis a epigenetica.", "varelo el psicoanalisis una epigenetica.", "varelo el psicoanalisis en epigenetica.", "varelo el psicoanalisis la genetica.", "barcelo el psicoanalisis la epigenetica.", "varela en psicoanalisis la epigenetica."
"tarea y psicoanalisis y eugenesia." » "tareas y psicoanalisis y eugenesia.", "tarea de psicoanalisis y eugenesia.", "tarea y psicoanalisis y eugenia."

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("varelo el psicoanalisis la epigenetica.") OR ("tarea y psicoanalisis y eugenesia."))~.
• Removing quotes may allow a broader search: (( varelo el psicoanalisis la epigenetica. ) or ( tarea y psicoanalisis y eugenesia. ))~.
• Adding a wildcard symbol may retrieve word variants: (("varelo el psicoanalisis la epigenetica.") or ("tarea y psicoanalisis y eugenesia."))*.