Perhaps you should try some spelling variations:
psicoanalisis la » psicoanalisis a, psicoanalisis una, psicoanalisis y
la epigenetica » la genetica
varela del » varela de, varela el, marcela del
sarduy el » sarduy y, sarduy la, sarda el
varda el » sarda el, varea el, warda el
qaeda el » rueda el, anda el, nada el

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((((varda el) OR (qaeda el))) OR (varela del))) OR (sarduy el)) psicoanalisis la epigenetica.~.
• Adding a wildcard symbol may retrieve word variants: ((((((varda el) or (qaeda el))) or (varela del))) or (sarduy el)) psicoanalisis la epigenetica.*.