Perhaps you should try some spelling variations:
"marcela del psicoanalisis y epigenetica." » "marcela el psicoanalisis y epigenetica.", "marcela y psicoanalisis y epigenetica.", "marcela del psicoanalisis la epigenetica.", "marcela de psicoanalisis y epigenetica.", "marcha del psicoanalisis y epigenetica.", "parcela de psicoanalisis y epigenetica."
"marcelo de psicoanalisis y genetica." » "marcelo el psicoanalisis y genetica.", "marcelo y psicoanalisis y genetica.", "marcela de psicoanalisis y genetica.", "marcelo de psicoanalisis la genetica.", "marcelo de psicoanalisis de genetica.", "marcelo de psicoanalisis y genomica."

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