Perhaps you should try some spelling variations:
"varela el psicoanalisis y epigenetica." » "varela el psicoanalisis la epigenetica.", "varela el psicoanalisis y genetica.", "varela del psicoanalisis y epigenetica.", "varela en psicoanalisis y epigenetica.", "varelo el psicoanalisis y epigenetica."
"tarea y psicoanalisis y genoma." » "tarea y psicoanalisis y genomica.", "tarea y psicoanalisis el genoma.", "tarea y psicoanalisis y gemma.", "tareas y psicoanalisis y genoma.", "tarea de psicoanalisis y genoma."

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

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