Perhaps you should try some spelling variations:
"mariela de psicoanalisis la epigenetica." » "mariela del psicoanalisis la epigenetica.", "mariela el psicoanalisis la epigenetica.", "mariela de psicoanalisis a epigenetica.", "mariela de psicoanalisis una epigenetica.", "mariela de psicoanalisis y epigenetica.", "mariela de psicoanalisis la genetica.", "marcela de psicoanalisis la epigenetica.", "gabriela de psicoanalisis la epigenetica.", "maria de psicoanalisis la epigenetica."
"varela y psicoanalisis de genetica." » "varela y psicoanalisis y genetica.", "varela y psicoanalisis en genetica.", "varela y psicoanalitico de genetica.", "varela el psicoanalisis de genetica.", "varela y psicoanalisis la 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: (("varela y psicoanalisis de genetica.") or ("mariela de psicoanalisis la epigenetica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("varela y psicoanalisis de genetica.") OR ("mariela de psicoanalisis la epigenetica.")).
• Removing quotes may allow a broader search: (( varela y psicoanalisis de genetica. ) or ( mariela de psicoanalisis la epigenetica. )).
• Adding a wildcard symbol may retrieve word variants: (("varela y psicoanalisis de genetica.") or ("mariela de psicoanalisis la epigenetica."))*.