Perhaps you should try some spelling variations:
"comentarios practicos social" » "comentario critico social" (Expand Search), "comentarios juridicos social" (Expand Search), "comentarios practico social" (Expand Search), "comentarios practicas sociales" (Expand Search), "comentarios practica sociales" (Expand Search)
"comentarios practica social" » "comentarios acerca social" (Expand Search), "comentario critico social" (Expand Search), "comentarios para social" (Expand Search), "comentarios practicas sociales" (Expand Search), "comentarios politica social" (Expand Search), "comentarios practica procesal" (Expand Search)
"comentarios criticos social" » "comentario critico social" (Expand Search), "comentarios juridicos social" (Expand Search), "comentarios critica social" (Expand Search), "comentarios critical social" (Expand Search), "comentarios crisis social" (Expand Search)

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: (("comentarios practicos social") OR ((("comentarios practica social") OR ("comentarios criticos social"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"comentarios practicos social\") OR (((\"comentarios practica social\") OR (\"comentarios criticos social\"))))".
• Removing quotes may allow a broader search: (( comentarios practicos social ) OR ((( comentarios practica social ) OR ( comentarios criticos social )))).
• Adding a wildcard symbol may retrieve word variants: (("comentarios practicos social") OR ((("comentarios practica social") OR ("comentarios criticos social"))))*.