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