Perhaps you should try some spelling variations:
"tareas y psicoanalisis de genetica." » "tareas y psicoanalisis en genetica.", "tareas y psicoanalitico de genetica.", "tareas el psicoanalisis de genetica.", "tareas y psicoanalisis la genetica.", "tareas de psicoanalisis de genetica."
"aura y psicoanalisis y epigenetica." » "aura el psicoanalisis y epigenetica.", "aura y psicoanalisis la epigenetica.", "aura y psicoanalisis y genetica.", "saura y psicoanalisis y epigenetica.", "aurea y psicoanalisis y epigenetica.", "apra y psicoanalisis y epigenetica."

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